9 Best Synology NAS Devices Under $1500, Compared
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Finding the best synology NAS devices under $1500 requires matching your infrastructure needs to specific hardware capabilities. We compared 9 models using only the specifications published on their listings. Our top pick is the Synology 12-Bay DiskStation Expansion Unit. It leads because it offers twelve drive bays for massive capacity expansion. This guide helps you decide which model fits your storage density, network speed, and form factor requirements.
Quick picks
The best fit for you
- You need to expand an existing Synology NAS system Synology 12-Bay DiskStation Expansion Unit The DX1215II adds 12 drive bays to your current setup for more capacity.
- You edit video with a 10GbE network infrastructure Synology 5-Bay 10GbE Desktop NAS The DS1525+ provides 10GbE connectivity for fast access to large media files.
- You want pre-installed 16TB storage in a 2-bay unit Synology DiskStation 2-Bay 16TB NAS The DS224+ includes 16TB of storage for immediate file and photo management.
- You require NVMe caching and 2.5GbE networking speeds Synology 2-Bay AMD Ryzen NAS The DS725+ features M.2 NVMe slots and 2.5GbE ports for faster performance.
- You need a scalable rackmount server for office backups Synology 4-Bay 1U Rackmount NAS The RS826+ is a 4-bay rackmount unit designed for team file sharing.
Our 9 picks
Synology 12-Bay DiskStation Expansion Unit
Best for: expanding storage for existing Synology NAS setups
- Drive Bays
- 12-Bay
- Included Storage
- Diskless
- Dimensions
- 18.5 × 17.1 × 16.5 inches
- Weight
- 19.9 pounds
View on Amazon: Synology 12-Bay DiskStation Expansion Unit Affiliate link
This is a diskless expansion unit designed to add 12 drive bays to your existing Synology NAS. It connects via plug-and-play design for easy upgrades. The unit measures 270 mm x 300 mm x 340 mm and weighs 19.9 pounds. It is built for users who need to scale storage capacity significantly without replacing their core server.
Pros
- Provides 12 additional drive bays
- Plug-and-play upgrade design
- Backed by a 5-year limited warranty
- Compatible with Synology HAT5300 SATA HDDs
Cons
- Does not include internal hard drives
- Requires a separate Synology NAS host
- Large physical footprint at 18.5 inches long
Good fit if
- You need to expand storage beyond your current NAS limits
- You want to add 12 drive bays to your setup
- You already own a compatible Synology DiskStation
Skip if
- You need a standalone NAS with built-in drives
- You have limited space for a 19.9-pound unit
- You do not own a Synology NAS host
Verdict: Synology DX1215II 12-Bay Expansion Unit is a scalable storage solution for users who need to add 12 drive bays to an existing Synology system. It fits users who prioritize capacity expansion over standalone functionality.
Synology 5-Bay 10GbE Desktop NAS
Best for: Professional video editing teams
- Drive Bays
- 5-Bay
- Included Storage
- Diskless
- Network Connectivity
- 10GbE
- Intended Use
- Video Editors
- Dimensions
- 8.78 × 9.06 × 6.54 inches
- Weight
- 5.89 pounds
View on Amazon: Synology 5-Bay 10GbE Desktop NAS Affiliate link
The Synology DS1525+ is a 5-bay network-attached storage device designed for professional video workflows. It features a 10GbE network port to support high-speed data transfer for 4K and 8K editing. The unit is diskless and scales up to 300TB with expansion units. It measures 166 x 230 x 223 mm and weighs 5.89 pounds. This device suits teams needing shared access to large media libraries.
Pros
- 10GbE network connectivity for fast data transfer
- 5-bay capacity for local drive installation
- Supports expansion to 300TB via DX525 units
- Optimized for simultaneous multi-user video editing
Cons
- Sold diskless with no included storage drives
- Requires separate 10GbE network infrastructure to utilize full speed
- Larger physical footprint than 2-bay desktop models
Good fit if
- You edit 4K or 8K video directly over the network
- You need a shared storage hub for multiple editors
- You plan to expand storage beyond 100TB
Skip if
- You want a NAS with pre-installed hard drives
- You only have standard 1GbE network ports
- You need a compact 2-bay desktop solution
Verdict: Synology DS1525+ 5-Bay NAS is a dedicated hub for production teams requiring high-speed network access to large media files. It fits users who already have 10GbE infrastructure and need scalable storage for collaborative projects.
Synology 8-Bay Expandable NAS Enclosure
Best for: professional video production teams
- Drive Bays
- 8-Bay
- Included Storage
- Diskless
- Dimensions
- 9.57 × 13.5 × 6.54 inches
- Weight
- 13.2 pounds
View on Amazon: Synology 8-Bay Expandable NAS Enclosure Affiliate link
This eight-bay Synology NAS is built for high-performance video production. It supports up to 360TB of storage and offers 25GbE networking options. The device handles 50+ concurrent users editing 4K or 8K footage. You get enterprise-grade data protection with clustering and failover. It is a diskless unit designed for teams needing mission-critical reliability and large file transfer speeds.
Pros
- Eight drive bays for expansive storage scaling
- Supports 25GbE network upgrade cards
- Handles 50+ concurrent users for video editing
- Includes high-availability clustering and automated failover
- Backed by a 3-year warranty
Cons
- Sold diskless without included hard drives
- Larger physical footprint than 2-bay models
- Requires separate purchase for networking cards
Good fit if
- You need a central hub for a creative team
- You require high-speed 25GbE connectivity
- You are building a scalable video archive
Skip if
- You want a small desktop unit
- You need pre-installed storage drives
- You only store personal photos
Verdict: Synology DS1825+ 8-Bay NAS is the right fit for professional studios that need to scale storage and handle heavy concurrent editing workloads.
Synology DS223j 8TB SSD NAS
Best for: Low-power home and small office file storage
- Drive Bays
- 2-Bay
- Network Connectivity
- 1GbE
- Processor
- RTD1619B 4-Core 1.7GHz
- RAM Capacity
- 1GB DDR4
- Included Storage
- 8TB
- Form Factor
- 2.5 Inch
View on Amazon: Synology DS223j 8TB SSD NAS Affiliate link
The Synology DS223j is a 2-bay NAS featuring an RTD1619B quad-core 1.7GHz processor and 1GB of DDR4 memory. It ships with 8TB of storage using two 4TB 2.5-inch SSDs. This setup ensures fast data access and low power consumption at 17.3W. You get a 1GbE port for network connectivity and Btrfs file system protection. It suits users needing reliable, energy-efficient storage for small offices or home use.
Pros
- Includes 8TB storage via two 4TB 2.5-inch SSDs
- Low power consumption at 17.3W during operation
- RTD1619B quad-core 1.7GHz CPU for efficient processing
- Btrfs file system with snapshot technology for data protection
Cons
- Only 1GB of DDR4 memory limits heavy multitasking
- Single 1GbE network port restricts transfer speeds
- No mention of RAM upgrade options in the data
Good fit if
- You need pre-installed SSD storage for immediate use
- You prioritize low power consumption for 24/7 operation
- You require basic data protection with Btrfs snapshots
Skip if
- You need high-speed 2.5GbE or 10GbE networking
- You plan to run memory-intensive virtual machines
- You want to expand RAM beyond the installed 1GB
Verdict: Synology DS223j 8TB SSD NAS provides a solid entry point for users who value included SSD storage and energy efficiency. It fits small teams needing reliable, low-power file sharing without the need for high-speed networking or heavy virtualization.
Synology DS223j 2-Bay 3.5 inch NAS
Best for: Home users needing high capacity and low power
- Drive Bays
- 2-Bay
- Network Connectivity
- 1GbE
- Processor
- RTD1619B 4-Core 1.7GHz
- RAM Capacity
- 1GB DDR4
- Included Storage
- 24TB
- Form Factor
- 3.5 Inch
View on Amazon: Synology DS223j 2-Bay 3.5 inch NAS Affiliate link
The Synology DS223j is a compact 2-bay NAS drive built for home users who need reliable storage without complexity. It uses a quad-core 1.7GHz CPU and 1GB of DDR4 memory to manage files efficiently. The unit includes 24TB of capacity across two 3.5-inch hard drives. It connects via a single 1GbE port and uses the Btrfs file system for data protection. This setup suits individuals who prioritize capacity and energy efficiency over high-speed networking.
Pros
- Includes 24TB of storage in two 3.5-inch hard drives
- Low energy consumption at 17.3 W during operation
- Btrfs file system with snapshot technology for data protection
- Quad-core 1.7GHz RTD1619B processor for stable performance
Cons
- Only one 1GbE network port limits transfer speeds
- 1GB of RAM restricts running multiple heavy applications
- No 2.5GbE or 10GbE connectivity for fast local transfers
Good fit if
- You need high capacity in a small 2-bay form factor
- You want a quiet, energy-efficient drive for home use
- You prefer simple file management with built-in data protection
Skip if
- You require 2.5GbE or 10GbE network speeds
- You plan to run Docker containers or heavy virtual machines
- You need to scale beyond two drives without expansion units
Verdict: Synology DS223j 2-Bay NAS is a practical entry point for users who value storage density and low power draw over raw speed. It fits those who need a reliable, quiet server for personal media and backups.
Synology DiskStation 2-Bay 16TB NAS
Best for: Users needing pre-installed 16TB storage
- Network Connectivity
- 2 x 1GbE
- Processor
- Celeron J4125 4-Core 2.0GHz
- RAM Capacity
- 6GB DDR4
- Included Storage
- 16TB
View on Amazon: Synology DiskStation 2-Bay 16TB NAS Affiliate link
The Synology DS224+ is a 2-bay NAS server that includes 16TB of storage (two 8TB drives). It uses an Intel Celeron J4125 quad-core processor running at 2.0GHz, with 6GB of DDR4 RAM. The unit features dual 1GbE LAN ports. It is designed for users who need reliable file management and surveillance video storage with a focus on energy efficiency.
Pros
- Includes 16TB of storage (2 x 8TB HDDs)
- Intel Celeron J4125 4-Core 2.0GHz CPU
- 6GB DDR4 non-ECC SODIMM Memory
- Operational power usage as low as 15 watts
Cons
- Limited to 2 drive bays
- Network ports are 1GbE, not 2.5GbE
- No mention of included case or drive enclosure
Good fit if
- You need a pre-configured storage solution with 16TB capacity
- You want a compact 2-bay NAS for home or small office
- You prioritize energy efficiency in your storage setup
Skip if
- You require 2.5GbE or higher network speeds
- You need more than 2 drive bays
- You want to build your own storage from bare drives
Verdict: The Synology DS224+ 2-Bay NAS with 16TB Storage suits users who want a ready-to-use, energy-efficient NAS with ample pre-installed storage and solid processing power for file and photo management.
Synology DS225+ 2-Bay NAS
Best for: Users needing 5GbE and expandable RAM
- Drive Bays
- 2-Bay
- Processor
- Intel Celeron J4125 Quad-Core
- RAM Capacity
- 2 GB DDR4 non-ECC SODIMM
- Included Storage
- 16TB
- RAID Support
- Synology Hybrid RAID (SHR)
- Network Connectivity
- 5GbE, 1GbE
View on Amazon: Synology DS225+ 2-Bay NAS Affiliate link
The Synology DS225+ is a 2-bay NAS featuring an Intel Celeron J4125 quad-core processor and 2 GB of expandable DDR4 RAM. It supports 5GbE connectivity and includes 16TB of storage in this configuration. The device uses the Btrfs file system for data protection. It suits users needing a compact, expandable storage solution with modern network speeds.
Pros
- Intel Celeron J4125 quad-core processor
- RAM expandable up to 6 GB
- 5GbE network connectivity
- Btrfs file system with snapshot technology
Cons
- Only 2 drive bays
- Base RAM is 2 GB
- Includes 16TB storage in this option
Good fit if
- You need a compact 2-bay NAS
- You want expandable RAM up to 6 GB
- You require 5GbE network speeds
Skip if
- You need more than 2 drive bays
- You require ECC memory support
- You need a rackmount form factor
Verdict: Synology DS225+ 2-Bay NAS offers a quad-core processor and 5GbE connectivity in a small 2-bay chassis, making it ideal for users who prioritize expandable RAM and network speed over high drive capacity.
Synology 2-Bay AMD Ryzen NAS
Best for: users needing NVMe caching and 2.5GbE
- Drive Bays
- 2-Bay
- Network Connectivity
- 1x 2.5GbE, 1x 1GbE
- Processor
- Ryzen R1600
- RAM Capacity
- 4GB
- M.2 NVMe Slots
- 2 slots
- Included Storage
- 8TB
View on Amazon: Synology 2-Bay AMD Ryzen NAS Affiliate link
The Synology DS725+ is a compact 2-bay NAS built for home and small office use. It features an AMD Ryzen R1600 processor and 4GB of RAM to handle multitasking and file transfers efficiently. You get two M.2 NVMe slots for fast caching or storage expansion. Network connectivity includes one 2.5GbE and one 1GbE port. This unit supports up to 140 TB with expansion units.
Pros
- AMD Ryzen R1600 quad-core processor
- Two M.2 NVMe slots for SSDs
- 4GB RAM capacity
- 1x 2.5GbE and 1x 1GbE network ports
Cons
- Only two drive bays limit total capacity
- No 10GbE network port included
- 4GB RAM may limit heavy virtualization tasks
Good fit if
- You need fast local storage caching via NVMe
- You want a compact unit for home use
- You require 2.5GbE network speeds
Skip if
- You need more than two drive bays
- You require 10GbE connectivity
- You need more than 4GB of RAM
Verdict: Synology DS725+ 2-Bay NAS is a practical choice for users who prioritize NVMe caching and 2.5GbE networking in a small form factor. It suits those who do not need high-density storage or 10GbE speeds.
Synology 4-Bay 1U Rackmount NAS
Best for: Office file sharing and backup
- Drive Bays
- 4-Bay
- Network Connectivity
- Four built-in 1GbE RJ-45 ports
- Included Storage
- Diskless
- Form Factor
- Rackmount
- Weight
- 19 pounds
View on Amazon: Synology 4-Bay 1U Rackmount NAS Affiliate link
The Synology RS826+ is a 1U rackmount NAS designed for office environments needing reliable file sharing and backup. It features four drive bays and four built-in 1GbE ports, delivering over 2,000 MB/s read speeds. You can scale storage by connecting an RX426 expansion unit. The device includes a PCIe slot for optional 10GbE or 25GbE network cards, making it suitable for teams requiring structured, scalable storage.
Pros
- Delivers over 2,000 MB/s sequential read throughput
- Includes four built-in 1GbE RJ-45 ports
- Features a PCIe 3.0 slot for 10GbE/25GbE upgrades
- Supports automated storage tiering for optimization
Cons
- Comes diskless with no included hard drives
- Limited to 1GbE ports without optional NICs
- Smaller 4-bay capacity compared to 12-bay alternatives
Good fit if
- You need a compact 1U rackmount solution
- You want to expand storage with an RX426 unit
- You require automated storage tiering for active workloads
Skip if
- You need pre-installed storage drives
- You require built-in 10GbE networking
- You prefer a desktop form factor over rackmount
Verdict: Synology RS826+ 4-Bay Rackmount NAS fits teams needing a scalable, high-speed rackmount server for office file sharing and backup.
Specifications side by side
| Spec | Synology 12-Bay DiskStation Expansion Unit | Synology 5-Bay 10GbE Desktop NAS | Synology 8-Bay Expandable NAS Enclosure | Synology DS223j 8TB SSD NAS | Synology DS223j 2-Bay 3.5 inch NAS | Synology DiskStation 2-Bay 16TB NAS | Synology DS225+ 2-Bay NAS | Synology 2-Bay AMD Ryzen NAS | Synology 4-Bay 1U Rackmount NAS |
|---|---|---|---|---|---|---|---|---|---|
| Drive Bays | 12-Bay | 5-Bay | 8-Bay | 2-Bay | 2-Bay | not stated | 2-Bay | 2-Bay | 4-Bay |
| Network Connectivity | not stated | not stated | not stated | 1GbE | 1GbE | 2 x 1GbE | not stated | 1x 2.5GbE, 1x 1GbE | Four built-in 1GbE RJ-45 ports |
| Processor | not stated | not stated | not stated | RTD1619B 4-Core 1.7GHz | RTD1619B 4-Core 1.7GHz | Celeron J4125 4-Core 2.0GHz | Intel Celeron J4125 Quad-Core | Ryzen R1600 | not stated |
| RAM Capacity | not stated | not stated | not stated | 1GB DDR4 | 1GB DDR4 | 6GB DDR4 | 2 GB DDR4 non-ECC SODIMM | 4GB | not stated |
| M.2 NVMe Slots | not stated | not stated | not stated | not stated | not stated | not stated | not stated | 2 slots | not stated |
| Included Storage | Diskless | Diskless | Diskless | 8TB | 24TB | 16TB | 16TB | 8TB | Diskless |
| RAID Support | not stated | not stated | not stated | not stated | not stated | not stated | Synology Hybrid RAID (SHR) | not stated | not stated |
| Form Factor | not stated | not stated | not stated | 2.5 Inch | 3.5 Inch | not stated | not stated | not stated | Rackmount |
| Hardware Interface | not stated | not stated | not stated | not stated | not stated | not stated | not stated | M.2 NVMe | not stated |
| Number of Bays | 12-Bay | not stated | 8-Bay | not stated | not stated | not stated | 2-Bay | 2-Bay | 4-Bay |
| Processor Cores | not stated | not stated | not stated | Quad-Core | Quad-Core | not stated | Quad-Core | not stated | not stated |
| Intended Use | not stated | Video Editors | not stated | not stated | not stated | not stated | not stated | not stated | not stated |
| Dimensions | 18.5 × 17.1 × 16.5 inches | 8.78 × 9.06 × 6.54 inches | 9.57 × 13.5 × 6.54 inches | 12 × 6 × 12 inches | 12 × 6 × 12 inches | not stated | not stated | 8.78 × 4.17 × 6.54 inches | not stated |
| Weight | 19.9 pounds | 5.89 pounds | 13.2 pounds | not stated | not stated | not stated | 4.41 pounds | 6.61 pounds | 19 pounds |
| Size | 270 mm x 300 mm x 340 mm | 166 mm x 230 mm x 223 mm | 166 mm x 343 mm x 243 mm | c) 8TB (2 x 4TB) 2.5" SSDs | d) 24TB (2 x 12TB) 3.5" HDD | 1U | 16TB | 6.54 inches H x 4.17 inches W x 8.78 inches D | 22.44x21.26x7.09 in |
| Color | Black | Black | Black | White | White | black | Black | gray | Black |
| Model | DX1215II | DS1525+ | DS1825+ | DS223j | DS223j | not stated | DS225+/16TB-IW | DS725+/8TB-IW | RS826+ |
For home equipment planning beyond network storage, you can compare specifications across the best rowers under 1500.
Key Specs to Compare Before Buying
-
Check network speed needs
Match your network infrastructure to the NAS connectivity. If your studio uses 10GbE switches, the DS1525+ provides the necessary bandwidth for large media files. Most home users only need 1GbE ports, like those on the DS223j. Teams wanting a middle ground should look at the DS225+ with 5GbE or the DS725+ with 2.5GbE. Ensure your switch supports the speed you choose to avoid bottlenecks during file transfers.
-
Select drive form factor
Choose between 2.5-inch SSDs and 3.5-inch HDDs based on your speed and capacity goals. The DS223j SSD model uses 2.5-inch drives for faster access, while the standard DS223j uses 3.5-inch drives for higher density. Most Synology models support 3.5-inch drives for maximum storage space. If you need quiet operation and high capacity for backups, 3.5-inch HDDs are the practical choice for home offices.
-
Consider RAM expandability
Look for models with expandable RAM if you plan to run virtual machines or heavy multitasking. The DS225+ allows you to upgrade memory, which helps with concurrent user loads. The DS725+ comes with 4GB of RAM, suitable for caching and basic tasks. Higher RAM capacity improves system responsiveness when multiple users access files simultaneously. Check the maximum supported memory before purchasing if you plan future upgrades.
-
Evaluate NVMe caching options
Use M.2 NVMe slots to accelerate read and write speeds for frequently accessed data. The DS725+ includes hardware interfaces for NVMe drives, allowing you to add cache without slowing down the main drives. This setup is ideal for users who need faster response times for photo libraries or small database files. It does not increase total storage capacity but improves performance for specific workloads.
-
Decide on chassis type
Pick a form factor that fits your workspace and expansion plans. The DX1215II is an expansion unit that adds bays to an existing system, requiring a host NAS. Standalone units like the DS1825+ offer eight bays in a desktop enclosure for independent operation. Rackmount models like the RS826+ fit into server racks for office environments. Choose based on whether you need to scale an existing setup or buy a new standalone server.
Frequently asked questions
Which Synology NAS is best for expanding existing storage?
The Synology DX1215II is the best choice for adding capacity to an existing system. This 12-bay expansion unit connects to your current NAS, allowing you to scale storage without replacing your entire setup. It measures 270 mm x 300 mm x 340 mm and weighs 19.9 pounds, making it a substantial addition for users prioritizing density over standalone features.
What is the fastest network option for video editing?
The Synology DS1525+ offers 10GbE connectivity, making it ideal for professional video editing teams. It provides high-speed access to large media files for collaborative projects. Measuring 166 mm x 230 mm x 223 mm, this five-bay desktop NAS fits users who already have 10GbE infrastructure and need scalable storage for heavy production workloads.
Is there a Synology NAS with AMD Ryzen processing?
Yes, the Synology DS725+ features an AMD Ryzen processor. It supports NVMe caching and includes 2.5GbE networking in a compact two-bay chassis. This model suits users who prioritize caching speed and network performance over high drive density. It weighs 6.61 pounds and is designed for efficient file management without requiring 10GbE infrastructure.
Which model is best for low-power home storage?
The Synology DS223j is a practical entry point for home users needing high capacity and low power draw. It features a quad-core processor and 1GbE connectivity. The two-bay version supports 3.5-inch HDDs, offering a reliable, quiet server for personal media and backups. It measures 6 inches wide by 12 inches tall and deep.
Can I get a rackmount Synology NAS under $1500?
The Synology RS826+ is a four-bay rackmount NAS designed for office file sharing and backup. It fits teams needing a scalable, high-speed server in a standard rack format. Measuring 22.44 x 21.26 x 7.09 inches, this black unit provides a professional form factor for businesses that require organized, accessible storage within a data center environment.
Which NAS supports expandable RAM and 5GbE?
The Synology DS225+ offers 5GbE and 1GbE connectivity with a quad-core Intel Celeron processor. It is ideal for users who prioritize network speed and expandable RAM over high drive capacity. This two-bay model weighs 4.41 pounds and provides a small footprint for users needing faster local network access for their files.