10 Best Synology NAS in 2026

A Synology NAS can centralize family photos, business files, backups, surveillance footage, and virtual applications in a system you control. The right model depends on drive capacity, network speed, processor performance, expansion options, and the protection features your workloads require.

We compared the ten models in this guide across bay count, included memory, networking, processor class, storage scalability, RAID support, snapshots, surveillance capability, and warranty coverage. The list includes diskless enclosures for buyers who already own drives as well as bundles with Ironwolf hard drives.

Each review identifies the use cases that suit the model, along with its most important limitations. The featured products vary from a one-bay personal hub to an eight-bay production system, so check current listing details and compatibility information before making a final purchasing decision.

Top 3 Picks for Best Synology NAS

Top 10 Best Synology NAS in 2026 Compared

The comparison below highlights each enclosure's core hardware, networking, storage design, and practical positioning. It makes it easier to distinguish a simple personal backup hub from a high-capacity system built for demanding creative or business workloads.

1. Synology DS925+ – Best Overall Synology NAS

4.3Editor scoreCheck price on Amazon

Synology DS925+

Four hot-swappable drive bays

AMD Ryzen V1500B processor

4GB ECC memory included

Dual 2.5GbE network ports

The Synology DS925+ is a four-bay diskless NAS rated 4.3 out of 5, and it stands out as the most balanced choice in this guide. Its Ryzen V1500B processor, included ECC memory, dual 2.5GbE networking, and support for the full range of DSM storage and business applications make it suitable for both serious home users and small organizations. It is particularly compelling for users who want a capable private cloud without moving directly to an eight-bay professional platform.

Pros

• Strong mixed-workload performance
• Useful memory expansion options
• Dual 2.5GbE connectivity
• Broad storage expansion support
• Comprehensive DSM applications

Cons

• Diskless enclosure requires drives
• Higher complexity than basic models

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Sequential throughput is listed at up to 522 MB/s read and 565 MB/s write, which gives this enclosure ample headroom for backups, shared documents, photo libraries, and active projects. The two network ports can provide faster aggregate transfers and can also be configured for redundancy, reducing the impact of a single cable or switch failure. Its four hot-swappable bays make drive maintenance practical, while the file, photo, data protection, virtualization, and surveillance applications broaden the system well beyond basic file serving.

The main trade-off is that this is a diskless product: compatible hard drives or SSDs must be sourced separately. A buyer also needs to understand that advertised sequential figures do not guarantee the same performance across every file pattern, protocol, workload, and network configuration. Fast Ethernet or a single slow client may prevent the storage system from realizing its full potential. Nevertheless, the combination of processing power, ECC memory, flexible networking, and mature Synology software is unusually versatile for a four-bay enclosure.

The DS925+ is the strongest recommendation for households that are outgrowing a two-bay unit, small creative teams, and branch offices that need virtualization or surveillance alongside storage. It is less compelling for someone who only needs to protect a small document folder or stream a few cameras. Even so, it offers enough performance and expansion room to serve as a long-term central system. For buyers who want strong all-around capability without moving to an enterprise-scale enclosure, the DS925+ is the most complete choice here.

Performance for demanding shared storage

The Ryzen V1500B and 4GB of ECC memory give the DS925+ more headroom than a typical entry-level NAS. That extra capability is valuable when file serving, backups, media applications, and virtual machines share the same system.

A practical path to more storage

Four internal bays provide a sensible starting point, and expansion support lets the system grow without requiring a completely new enclosure. Buyers should still plan for compatible drive capacities and account for the reduced usable total created by RAID protection.

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2. Synology DS223 – Best Budget Synology NAS

4.6Editor scoreCheck price on Amazon

Synology DS223

Two-bay diskless design

Consolidated file storage

Multi-destination backup support

IP camera monitoring

The Synology DS223 is a two-bay diskless NAS with a 4.6 rating, making it an appealing budget-conscious route to owning local storage. It is designed around a clear proposition: place files from computers, phones, and external drives into one accessible hub, then protect those files with automated backups. That combination makes it a good fit for families, home offices, and users who want more control than consumer file-sharing services typically provide.

Pros

• Straightforward home setup
• Strong customer rating
• Consolidates scattered files
• Supports automated backups
• Useful remote surveillance

Cons

• Only two internal bays
• Less suitable for heavy workloads

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Its collaborative features allow users to share projects, synchronize documents across a team, and maintain version control. Automated backup workflows can target multiple destinations, including cloud storage and external drives, which reduces the risk of relying on a single copy. The DS223 also supports IP camera monitoring with motion alerts, recording schedules, and remote viewing, so it can become a property-security hub as well as a file server.

Two bays mean the design is inherently limited. RAID redundancy can provide protection against a single-drive failure, but it also reduces the combined usable capacity, and there is no room for additional internal drives after both bays are occupied. The system is therefore less attractive for large media archives, high-concurrency databases, or virtualized business infrastructure. As a diskless enclosure, it also does not include hard drives, so the total cost of ownership must be considered beyond the NAS unit itself.

The DS223 is most appropriate for a couple or family consolidating photos, documents, and device backups, especially those who also want basic camera monitoring. It is easy to recommend because it focuses on the features people actually use most often and has a strong 4.6 rating. Buyers who expect rapid expansion, many concurrent users, or large production files should move up to the DS925+ or DS725+ instead. For a compact and understandable first NAS, however, the DS223 is a compelling choice.

Local ownership without subscriptions

The central benefit is a single home for data that remains accessible through Synology's ecosystem. It is especially useful for people who want shared storage and remote access without making a cloud subscription the foundation of their workflow.

Protection through repeatable backups

Automated schedules are more dependable than occasional manual copies. Sending protected data to multiple destinations also creates a layered response to accidental deletion, drive failure, ransomware, and other common incidents.

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3. Synology DS1825+ – Best Premium Synology NAS

4.0Editor scoreCheck price on Amazon

Synology DS1825+

Eight hot-swappable drive bays

Up to 2,239 MB/s speeds

Optional 10GbE or 25GbE

Expansion to 360TB

The Synology DS1825+ is an eight-bay diskless NAS built for demanding creative teams, video production environments, and organizations that cannot treat storage as an isolated utility. Its 4.0 rating is the lowest among the featured products, but the listed specifications make clear that this is a specialized high-capacity system rather than a basic home appliance. It supports large concurrent editing groups, databases, virtual machines, and media services without asking buyers to choose between those workloads.

Pros

• Exceptional multi-user performance
• High-speed network options
• Large production storage capacity
• High-availability and failover
• Enterprise support availability

Cons

• Substantial hardware investment
• Advanced deployment requirements

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The most striking claim is support for more than 50 concurrent users editing 4K or 8K projects, with performance speeds reaching 2,239 MB/s. That capability depends on appropriate drives, high-speed networking, appropriate configurations, and workloads that benefit from the available bandwidth. The enclosure can use 10GbE or 25GbE upgrade cards, allowing creative departments to build network infrastructure around the storage rather than accepting a fixed Ethernet ceiling.

Storage can grow from 160TB to 360TB through expansion units, which makes the platform appropriate for growing archives, post-production workflows, and broadcast media. High-availability clustering, automated failover, and comprehensive backup capabilities add protection beyond ordinary RAID. These features do not eliminate the need for sound administration or off-site copies, but they provide additional resilience for a business-critical environment. Buyers must also supply compatible storage and the necessary network equipment.

The DS1825+ is the right recommendation for professional edit suites, production houses, and data-intensive organizations that need a large, fast, highly available platform. It may be excessive for a family with a modest photo collection, and its total cost of ownership requires careful planning. For buyers who truly need its scale and concurrency, however, it is the most capable and specialized system in this roundup.

Built for collaborative media workflows

Large editing teams can work against the same library without routing every project file through a desktop workstation. High throughput and concurrency support also allow related services, such as databases or media applications, to remain productive on the same system.

Resilience beyond standard RAID

High-availability clustering and failover are particularly valuable when uninterrupted access matters. They should be combined with versioned backups and an off-site copy so that the deployment can address accidental changes and site-level disruption as well as drive failure.

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4. Synology DS925+ 32TB – Best Ready-to-Use Synology NAS

4.5Editor scoreCheck price on Amazon

Synology DS925+ 32TB

Four 8TB Ironwolf drives

Ryzen V1500B quad-core processor

4GB ECC memory included

Dual 2.5GbE LAN ports

The 32TB DS925+ bundle combines the four-bay DS925+ enclosure with four 8TB Seagate Ironwolf hard drives, creating a ready-to-build storage system for buyers who want both major components in one purchase. It retains the 4.5 rating of the corresponding bundle listing and carries the DS925+ platform's Ryzen V1500B quad-core processor, 4GB of ECC memory, and dual 2.5GbE ports.

Pros

• Storage and NAS included
• Four hot-swappable drive bays
• ECC memory supports reliability
• M.2 NVMe slot support
• Expandable with DX525

Cons

• Raw capacity differs from usable
• All-in-one bundle limits choices

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Its internal design supports 2.5-inch and 3.5-inch hot-swappable drives, two M.2 NVMe slots, and two USB 3.2 Gen1 ports. An expansion unit can increase the system to as many as nine drives, making this a convenient platform for a business that expects its storage footprint to grow. The bundle is particularly useful for virtualization, backup, shared storage, and video surveillance, where a ready-made combination can simplify procurement.

The included drives make the package less flexible than buying a diskless enclosure separately. Users cannot change the supplied capacity before ordering, and they may eventually need additional compatible drives as capacity requirements change. The 32TB figure describes the combined raw drive capacity before RAID overhead and filesystem effects, so the actual usable amount will be lower. Memory is also limited to 4GB initially, although it can be expanded to 32GB.

This bundle is an excellent choice for an organization that wants the DS925+ feature set with immediate usable storage and does not need a specific mix of drive sizes. It is also convenient for a technically knowledgeable buyer making a single procurement decision. Buyers who already own suitable drives, want to control every component, or need a different capacity configuration should use the diskless DS925+ instead. For a straightforward, capacity-rich package, this is a strong option.

One coordinated hardware package

Pairing a NAS enclosure with four matching Ironwolf drives removes the need to select and source storage separately. It can shorten initial setup and make it easier to establish a consistent drive set for a new deployment.

Room for faster auxiliary storage

The two M.2 NVMe slots allow compatible SSDs to be used for caching or storage pools, depending on the system configuration. This can improve responsiveness or create fast working space without occupying the four larger drive bays.

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5. Synology DS124 – Best Compact Synology NAS

4.3Editor scoreCheck price on Amazon

Synology DS124

Single 3.5-inch drive bay

Personal backup and file hub

Cross-platform device backup

AI-powered surveillance alerts

The Synology DS124 is a one-bay diskless NAS designed for personal backups, private file access, and a modest home surveillance role. Its 4.3 rating reflects a straightforward product aimed at individuals and families rather than high-capacity teams. The most important strengths are ease of use and focused functionality: protecting phone and computer data, providing a private file cloud, and connecting compatible IP cameras.

Pros

• Simple one-bay footprint
• Straightforward personal backup
• Private file access anywhere
• Useful smart home alerts
• Two-year warranty coverage

Cons

• No RAID redundancy
• Limited expansion potential

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Automatic backup workflows can protect photos, documents, and videos from iPhone, Android, Mac, and Windows devices. Shared links allow large projects to be distributed without treating a public cloud subscription as the primary storage layer. The DS124 can also operate as a smart home security hub, using AI-assisted detection to identify people and vehicles and send instant alerts. These features make it useful even for a household with only one backup target.

A single drive bay is the model's defining limitation. Because the enclosure cannot create a RAID mirror, there is no automatic protection against the failure of its one installed hard drive. The information should therefore be replicated to an external drive, cloud destination, or another system. Expansion is also inherently limited: there are no additional internal bays, and adding a larger drive later means replacing the current one and migrating the data.

The DS124 suits a first-time NAS owner, a student, or anyone who wants a straightforward personal file hub without a larger enclosure. It can work well as a secondary backup or surveillance appliance, but it should not be treated as the only copy of irreplaceable files. Buyers who value drive-level redundancy or anticipate rapid growth should choose a two-bay or four-bay model. For simple, locally controlled personal storage, the DS124 is easy to recommend.

A focused personal backup appliance

The DS124's strength is not high performance or expandability; it is an approachable path to automatic backups across major device platforms. That makes it well suited to users who value simplicity and have modest storage needs.

Useful alerts for home monitoring

AI-assisted detection can distinguish notable activity and reduce the need to review every movement event manually. Remote access and instant notifications add practical value when compatible cameras are installed around the property.

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6. Synology DS225+ 8TB – Best Two-Bay Synology NAS

4.6Editor scoreCheck price on Amazon

Synology DS225+ 8TB

Two 4TB Ironwolf drives

Intel J4125 quad-core processor

2GB non-ECC memory

2.5GbE and 1GbE ports

The 8TB DS225+ package pairs a two-bay Synology enclosure with two 4TB Seagate Ironwolf hard drives, giving buyers a complete storage system with a 4.6 rating. The Intel Celeron J4125 is a capable quad-core processor for a compact NAS, while the included 2GB of non-ECC DDR4 memory can be expanded to 6GB by adding a supported 4GB module. That expansion is useful for users who expect more demanding file services or applications over time.

Pros

• Complete two-drive configuration
• High 4.6 customer rating
• Flexible SHR storage
• Btrfs snapshots supported
• Third-party drive compatibility

Cons

• Modest included memory
• No ECC memory support

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Networking includes one 2.5GbE and one 1GbE RJ-45 port, providing a practical upgrade path from basic gigabit connectivity without requiring the dual high-speed arrangement found on the DS925+. The system supports Synology Hybrid RAID, allowing a simpler approach to capacity management than manually balancing identical RAID groups. Its Btrfs file system and snapshot technology add layers of protection and rollback capability that are especially helpful against accidental edits and ransomware.

The included 2GB of memory is modest, and the platform uses non-ECC rather than ECC RAM. That distinction is relevant for buyers comparing it with the DS925+, whose higher-end platform includes ECC memory and is better aligned with sustained business workloads. Two drives also impose a hard limit on internal expansion. The supplied configuration may still be entirely appropriate for a family or small office, particularly when using SHR and maintaining external backups.

This bundle is a strong recommendation for buyers who want a straightforward two-bay system with drives already included. It is easier to deploy than a diskless model and provides a balanced mix of performance, data protection, and approachable capacity. Users wanting maximum future flexibility or more demanding workloads should move to a four-bay platform, while those prioritizing simplicity will appreciate the straightforward two-drive design.

Capacity management with less complexity

Synology Hybrid RAID can simplify decisions when capacities differ or the system needs to grow. It is a practical way to maintain redundancy without requiring constant attention to a highly segmented storage layout.

Snapshots add a safety net

Btrfs snapshots create efficient recovery points that can protect against accidental changes and malicious alterations. They complement rather than replace regular backups, especially when the system is connected to clients that can modify shared files.

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7. Synology DS423 – Best Family and Business Synology NAS

4.4Editor scoreCheck price on Amazon

Synology DS423

Four diskless drive bays

Private cloud file sharing

Immutable snapshot protection

Support for 30 cameras

The Synology DS423 is a four-bay diskless NAS rated 4.4 out of 5, positioned for families and small businesses that need a capable private cloud without a high-end enclosure. It combines secure file sharing, photo organization, automated backup, local file serving, and surveillance in a flexible package. Four bays offer more growth room than a typical two-bay home NAS while remaining easier to deploy and administer than a large production system.

Pros

• Flexible four-bay capacity
• Strong ransomware-resistant tools
• Easy shared folder controls
• Broad surveillance support
• Two-year warranty

Cons

• No drives included
• Camera licenses cost extra

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Its data-protection features deserve particular attention. Snapshots can be used to recover from accidental modifications and malware, while versioned files and multi-destination backups provide additional layers of recovery. Immutable snapshots are especially relevant where ransomware-resistant protection is important. The file server features, including team folders and permission controls, make it possible to replace many separate file-sharing workflows with a centrally managed system.

For surveillance, the DS423 can support up to 30 IP cameras. That limit applies to compatible camera licensing, and the required licenses must be purchased separately. The product title and supporting details also list the model as diskless, so compatible storage must be selected separately. The enclosure may lack some of the raw performance and connectivity available from the DS925+, but its core protection and collaboration features make it a versatile middle-ground system.

The DS423 is most suitable for a family managing shared media, a home office running a small file server, or a small business that values snapshots and camera support. Buyers who also need high-speed multi-user performance should consider the DS925+. For straightforward shared storage with strong recovery options, the DS423 is a balanced and highly relevant choice.

Ransomware resistance through layers

Immutable snapshots, versioned files, and multi-destination backups address different stages of an incident. Combining them reduces dependence on a single recovery point and makes it easier to restore an earlier, unaffected version of a shared file.

Sharing with built-in controls

Team folders and permissions let administrators control access instead of distributing unrestricted links. This is important for organizations that need external collaboration without making every document publicly accessible.

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8. Synology DS725+ – Most Expandable Two-Bay Synology NAS

4.1Editor scoreCheck price on Amazon

Synology DS725+

Two-bay diskless design

Expansion to 140TB

RAID and snapshot protection

Support for 30 cameras

The Synology DS725+ is a two-bay diskless NAS with a clear emphasis on future growth. Its 4.1 rating sits near the middle of the group, and the product is aimed at homes and small businesses that want a private cloud while preserving an expansion path. A DX525 unit adds five drive bays, allowing the platform to grow to as much as 140TB according to the supplied specifications.

Pros

• Expandable through DX525
• Layered data protection
• Advanced surveillance analytics
• Remote secure camera access
• Three-year warranty

Cons

• Requires a separate expansion unit
• Two-bay starting capacity

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That scalability distinguishes the DS725+ from simpler two-bay models. It can begin with two drives and expand when a media library, project archive, or surveillance installation outgrows the original enclosure. Layered protection combines RAID redundancy, automated backups, and snapshots, giving administrators several ways to respond to a drive failure, accidental deletion, or destructive software.

The system also supports a professional surveillance environment with up to 30 IP cameras, motion detection, advanced analytics, secure remote access, and retention options. Those features are useful for a home or small business that wants a single infrastructure platform for storage and monitoring. The trade-off is that expansion requires an additional unit and compatible drives, while the initial two-bay configuration remains limited.

The DS725+ is a strong choice for buyers who want a small starting footprint but do not want to replace the entire NAS when their needs increase. It is less suitable for buyers who need immediate maximum bandwidth or for users unwilling to manage expansion hardware and compatible storage. It also provides fewer internal bays than a four-bay model at the outset. When future growth is the priority, however, this is one of the most flexible two-bay choices available.

Grow storage without replacing the NAS

Adding a DX525 preserves the initial enclosure while extending total bay capacity. That can be more efficient for a growing household or business than repeatedly migrating data into unrelated storage systems.

Surveillance with meaningful analytics

Motion detection and advanced analytics can make recorded footage easier to review. Secure remote access is particularly useful for owners who need to check their property without being physically present.

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9. Synology DS925+ 48TB – Best High-Capacity Synology NAS

4.5Editor scoreCheck price on Amazon

Synology DS925+ 48TB

Four 12TB Ironwolf drives

Ryzen V1500B quad-core processor

4GB ECC memory included

Expansion to nine drives

The 48TB DS925+ bundle supplies four 12TB Seagate Ironwolf drives alongside Synology's four-bay enclosure, making it a high-capacity starting configuration for studios, offices, and media libraries. It carries a 4.5 rating and preserves the DS925+ platform's Ryzen V1500B quad-core processor, 4GB of ECC memory, dual 2.5GbE ports, and support for virtualization, backup, and surveillance.

Pros

• Substantial starting capacity
• Ready-made enterprise-style bundle
• ECC memory improves platform fit
• High-speed dual networking
• Two NVMe slots

Cons

• Large four-drive configuration
• Usable capacity is lower than raw

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The main attraction is immediate capacity. Four 12TB drives create 48TB of raw combined storage before filesystem overhead and RAID protection are applied. For organizations handling large media collections, project archives, or camera footage, that reduces the need to add disks immediately. Hot-swappable bays, two M.2 NVMe slots, and USB connectivity make the underlying platform flexible even though the supplied drive set is specifically configured.

This package is less appropriate for light users because it concentrates four large drives into the initial purchase. It also does not eliminate the need to understand how storage protection affects usable capacity. A business may need a carefully designed RAID or SHR layout, adequate cooling, and a network capable of sustaining the system's performance. The bundle's ready-made nature simplifies deployment, but it does not make backup planning optional.

The 48TB bundle is best for small production groups, media-heavy offices, and creative teams that want the DS925+ platform with a large storage foundation. It is also a logical way for an organization to standardize on a balanced combination of drives and enclosure. Buyers who need less capacity can choose the 32TB bundle, while those with their own compatible disks may prefer the diskless DS925+. As a high-capacity package, this is an efficient and performance-oriented choice.

Less waiting before expansion

Starting with four large drives gives a media organization a substantial working library from the beginning. It can reduce the disruption associated with adding disks, rebuilding storage, or moving data into a newly expanded system.

A balanced performance platform

The Ryzen processor, ECC memory, and dual high-speed network ports ensure that the storage is backed by more capable infrastructure than a basic two-bay system. These features help when several users or applications access the same datasets concurrently.

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10. Synology DS225+ 16TB – Best Compact High-Capacity Synology NAS

4.6Editor scoreCheck price on Amazon

Synology DS225+ 16TB

Two 8TB Ironwolf drives

Intel J4125 quad-core processor

2GB non-ECC memory

2.5GbE and 1GbE ports

The 16TB DS225+ bundle combines a compact two-bay Synology enclosure with two 8TB Seagate Ironwolf drives, offering more immediate capacity than smaller packages while retaining a 4.6 rating. The Intel Celeron J4125 quad-core processor is suitable for home and small-office workloads, and the system includes 2GB of non-ECC DDR4 memory that can be expanded to 6GB with an additional supported 4GB module.

Pros

• Higher starting drive capacity
• Well-rated two-bay package
• SHR supports flexible management
• Btrfs snapshot protection
• Third-party drive compatibility

Cons

• Limited RAM expansion
• Only two internal drive bays

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A 2.5GbE port provides a useful upgrade over basic gigabit networking, while the separate 1GbE port adds flexibility for compatible devices and network arrangements. Synology Hybrid RAID helps administrators manage the two-drive pool efficiently, and Btrfs with snapshot technology supports safe experimentation, version recovery, and protection from unwanted changes. Compatibility with third-party hard drives since DSM 7.3 also makes the platform less restrictive for future storage additions.

The 16TB label refers to the two drives' combined raw capacity, not the amount available after protection is enabled. The included memory remains modest even after its maximum supported configuration, and there are only two internal bays. This makes the platform less appropriate for dense virtual machines, very large collaborative databases, or applications that need to scale across numerous internal drives. Expansion options should be confirmed for the exact configuration and current DSM release.

The bundle is a good fit for a family photo archive, a growing media library, or a small office that wants a two-bay system with meaningful capacity included. Compared with the 8TB version, it offers more room without changing the processor and networking class. For buyers who need greater future flexibility, the four-bay DS925+ or DS423 would be more appropriate. Within the compact two-bay category, this is a well-rounded and highly rated package.

More useful space from two drives

The larger 8TB drives make this bundle more practical for photographers, media collectors, and households accumulating years of files. RAID or SHR will reduce the usable total, but the underlying raw capacity creates a healthier starting point than smaller disks.

Simple recovery with snapshots

Btrfs snapshots make it possible to recover selected files or shared folders after an accidental deletion or unwanted modification. Scheduled backups to an independent destination should still be part of the protection plan.

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Buying Guide – How to Choose the Best Synology NAS

Choosing a Synology NAS involves balancing immediate storage needs against future expansion, performance, data-protection requirements, and the role the system will play in your home or organization. The most important starting point is the workload rather than the number of bays alone.

Choose the right number of drive bays

Bay count determines how many internal drives the enclosure can hold and how much it can grow. A one-bay DS124 is appropriate for simple personal storage, while a two-bay DS223, DS225+, or DS725+ is a more versatile starting point because two drives can provide a protected configuration. A four-bay DS423 or DS925+ supports more data, services, and users, and the eight-bay DS1825+ serves large professional environments. Expansion units add flexibility, but they also require compatible drives, power, cabling, and a larger physical footprint.

Decide between a diskless model and a bundle

A diskless enclosure gives you control over drive capacity, brand, and procurement timing. It is often better for buyers who already own compatible hard drives or need a particular configuration. A bundle includes the NAS and matching Ironwolf drives, which simplifies setup and makes the purchase more unified. However, it is less flexible if the supplied capacity does not match your needs, and the raw capacity shown is not the same as usable space after RAID overhead. Whichever format you choose, confirm current compatibility and storage requirements before ordering.

Match networking to existing infrastructure

A NAS cannot transfer data faster than the slowest part of its path. Standard gigabit Ethernet may be sufficient for document backups and light streaming, while 2.5GbE can make large file transfers noticeably more responsive. The DS225+ includes both 2.5GbE and 1GbE ports, and the DS925+ has dual 2.5GbE ports that may also be used for redundancy. The DS1825+ supports optional 10GbE or 25GbE upgrade cards for professional networks. Existing switches, adapters, cables, and client devices must support the selected speed to realize any improvement.

Assess processor and memory needs

The Ryzen V1500B and 4GB of ECC memory in the DS925+ provide more headroom for multi-user storage, virtualization, databases, and media applications. The DS225+ uses a Celeron J4125 with 2GB of non-ECC memory, expandable to 6GB, which is adequate for many home and small-office jobs. The simpler DS223, DS124, DS423, and DS725+ focus primarily on file services, backup, collaboration, and surveillance rather than intensive compute workloads. Applications, concurrent users, and background services all influence how much memory and processing power are genuinely necessary.

Plan a layered protection strategy

RAID can help maintain access when an individual drive fails, but it is not a complete backup. Snapshots and immutable versions help reverse accidental changes and ransomware activity, while automated backups to an external drive, cloud service, or second NAS create a separate recovery copy. Versioning is particularly useful when multiple people edit shared files. For important information, follow the 3-2-1-style principle of maintaining copies on multiple types of media and testing whether the files can actually be restored.

Check surveillance requirements carefully

Several featured Synology systems can support IP cameras, but camera support involves more than connecting a device. The DS423 and DS725+ list compatibility with up to 30 cameras, while additional camera licenses may be required. Consider supported camera models, motion detection, analytics, retention, viewing experience, and whether the system can handle the total network traffic. Storage requirements also depend on camera count, resolution, encoding, frame rate, and recording schedule. A NAS with ample drive capacity may be necessary if continuous recording is expected.

Factor in physical setup and administration

A larger NAS consumes more space, generates more heat, and may create more noise than its drive count suggests. It also demands attention to ventilation, cable management, and reliable power. Larger systems also introduce more configuration decisions involving users, shared folders, permissions, snapshots, applications, and network access. The DS124 and DS223 are the simplest choices, while the DS1825+ is aimed at administrators who can manage enterprise-style features. Synology's DSM interface is approachable, but a complex deployment benefits from careful planning rather than immediate activation of every available service.

Understand warranty and support coverage

The supplied details list two-year warranties for the DS223, DS124, and DS423, and three-year limited hardware warranties for the DS925+, DS1825+, and DS725+. The DS925+ and DS1825+ bundles also indicate a three-year warranty. The DS1825+ can be paired with dedicated technical account management for business-critical production environments. Warranty length is only one part of the support picture; buyers should also consider documentation, available applications, expected software maintenance, and whether their deployment needs formal enterprise assistance.

How to Use and Care for Your Synology NAS

Begin by confirming the enclosure, drives, memory, and expansion unit are supported by the current DSM release. Connect the NAS to the network, use a wired connection when possible, and follow the initial setup process to create an administrator account, configure the network, and establish a secure password. Before migrating important files, create the appropriate shared folders and decide whether to use SHR, RAID, or a single-drive arrangement based on your recovery strategy rather than capacity alone.

Install only the applications required for your workflow, then schedule automatic backups rather than relying on occasional manual copies. Connect cameras and other devices gradually so you can verify permissions, alerts, retention, and network load. Keep the system updated, use strong account credentials and multi-factor authentication where available, and restrict shared-folder access through user groups and permissions. Periodically review connected clients, active shares, and administrative alerts to identify unused access paths or configuration changes.

To maintain the hardware, keep the NAS in a cool, ventilated, dust-resistant location and leave clearance around its vents. Avoid placing it in a cramped cabinet, and do not interrupt power during storage operations or firmware updates. Monitor drive health, review warnings, and replace failed drives promptly. Keep another verified copy of important data, periodically test restoration, and follow the manufacturer's procedures when adding memory, changing drive configurations, expanding the system, or cleaning the enclosure.

Frequently Asked Questions

Final Thoughts on Choosing the Best Synology NAS

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