6 Best Alternatives to the Synology DiskStation 8TB 2-Bay NAS (2026)
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The Synology DS225+ offers robust data protection through Btrfs snapshots and expandable RAM, making it a strong choice for users prioritizing integrity. However, you might seek synology ds225 2 bay diskstation NAS alternatives if your needs differ. You may require more RAM for multitasking, faster 2.5GbE networking, or a different brand’s software ecosystem. Some buyers prefer the hot-swap convenience of other models or the quiet operation of SSD-based units. Others might look for higher capacity options or simpler setups for basic file sharing.
We selected these alternatives because their specifications overlap with the original unit’s core functions. Each option provides 2-bay storage, ensuring you can house two drives for redundancy or expansion. The list includes models with varying RAM capacities, from 2GB to 8GB, allowing you to match performance to your workload. Network connectivity ranges from standard 1GbE to faster 2.5GbE ports, catering to different bandwidth requirements. By comparing these published specs, you can identify the device that best fits your specific storage and speed needs without compromising on essential features.
Our top pick: Synology DiskStation 8TB 2-Bay NAS.
How each alternative compares
Synology 2-Bay 8TB NAS
The Synology DS223 offers hot-swap drive bays, a feature the DS225+ lacks. This allows you to replace drives without powering down the system. It uses a single 1GbE port, which is slower than the DS225+ dual 2.5GbE/1GbE setup. RAM is fixed at 2GB, whereas the DS225+ supports expansion up to 6GB. The DS223 is quieter and more compact. Choose this model if you need easy drive maintenance and basic storage. Avoid it if you require high-speed networking or future RAM upgrades. It is a simpler, more traditional 2-bay solution for standard home or small office use.
TerraMaster F2-423 2-Bay NAS
The TerraMaster F2-423 provides 4GB of RAM, double the base amount of the DS225+. It includes dual 2.5GbE ports for faster local network transfers. This model uses a similar Intel Celeron quad-core processor. However, it lacks the Btrfs file system and snapshot technology found in Synology devices. You gain raw performance and memory but lose advanced data protection features. Pick this NAS if you prioritize multitasking speed and network throughput over enterprise-grade data integrity. It is ideal for users who manage large files and need extra RAM for virtual machines or heavy multitasking without the Synology software ecosystem.
QNAP TS-264 2-Bay Desktop NAS
The QNAP TS-264 features 8GB of RAM, significantly more than the DS225+ base configuration. It includes dual 2.5GbE ports and M.2 NVMe slots for caching. This makes it much faster for handling heavy workloads and rapid data access. The processor is also an Intel Celeron quad-core. You give up the Synology DSM operating system and its specific Btrfs snapshot capabilities. Choose this NAS if you need maximum RAM and SSD caching for performance. It suits users who require high-speed storage expansion and faster network speeds. It is less suitable for those who prioritize data snapshot reliability over raw processing power and caching speed.
Synology 2-Bay NAS with 8TB Storage
The Synology DS223j uses a single 1GbE port, which is slower than the DS225+ dual-port setup. It has fixed RAM and lacks the expandable memory option. This model is designed for basic file storage and media sharing. It does not support Btrfs snapshots. The DS223j is simpler and more energy-efficient. Select this NAS if you only need basic storage without advanced features. It is ideal for users who prioritize simplicity and low cost over speed and data protection. Avoid it if you require fast network transfers or advanced backup options. It is a practical entry-level choice for light home use.
Synology DS223j 4TB 2.5 Inch SSD NAS
The Synology DS223j SSD NAS uses pre-installed 2.5-inch SSDs instead of traditional hard drives. This provides faster read and write speeds. It has a single 1GbE port, which is slower than the DS225+. The SSDs offer quieter operation and lower power consumption. You lose the ability to upgrade storage capacity easily by adding more drives. Choose this model if you need quiet, fast storage for small offices or homes. It is best for users who prioritize speed and silence over high capacity and expandability. It is not suitable for users requiring large storage volumes or high-speed networking.
Synology DS223j 16TB 3.5 Inch NAS
The Synology DS223j 16TB NAS uses pre-installed 3.5-inch HDDs for higher capacity. It has a single 1GbE port, which is slower than the DS225+. The storage is fixed, so you cannot add more drives. This model is designed for high-capacity home storage. It lacks the Btrfs snapshot feature. Pick this NAS if you need large storage space without managing individual drives. It is ideal for users who prioritize capacity and simplicity over speed and data protection. Avoid it if you require fast network transfers or advanced backup options. It is a practical choice for users who need reliable file backup and sharing.
Quick picks
Our 7 picks
Synology DiskStation 8TB 2-Bay NAS
Best for: Users needing 8TB storage with Btrfs snapshots
- Drive Bays
- 2-Bay
- Processor
- Intel Celeron J4125 Quad-Core
- RAM Capacity
- 2 GB Non-ECC DDR4 SODIMM
- Included Storage
- 8TB
- RAID Support
- Synology Hybrid RAID (SHR)
- Network Connectivity
- 5GbE, 1GbE
View on Amazon: Synology DiskStation 8TB 2-Bay NAS Affiliate link
The Synology DS225+ is a 2-bay NAS with an Intel Celeron J4125 quad-core processor and 2 GB of DDR4 RAM. It includes 1 x 2.5 GbE and 1 x 1 GbE ports for flexible networking. The system supports Synology Hybrid RAID and the Btrfs file system with snapshot technology. It comes pre-loaded with 8TB of storage. This unit suits users who need reliable data protection and expandable memory for home or small office environments.
Pros
- Intel Celeron J4125 quad-core processor
- Dual network ports: 1 x 2.5 GbE and 1 x 1 GbE
- Expandable RAM up to 6 GB
- Btrfs file system with snapshot technology
- Supports Synology Hybrid RAID
Cons
- Only 2 GB of RAM included
- No mention of included SSD cache
- 2.5 GbE port count limited to one
Good fit if
- You need a 2-bay NAS with 8TB of pre-installed storage
- You want expandable RAM for better multitasking
- You require Btrfs snapshot technology for data protection
Skip if
- You need more than 2 drive bays
- You require dual 2.5 GbE ports
- You need a processor faster than Intel Celeron
Verdict: Synology DS225+ 2-Bay 8TB NAS is a solid choice for users who prioritize data integrity and flexible networking in a compact 2-bay form factor. It fits those who value expandable RAM and Btrfs snapshots over raw processing power.
Synology 2-Bay 8TB NAS
Best for: Basic 2-bay storage with hot-swap convenience
- Drive Bays
- 2-Bay
- Network Connectivity
- 1 x RJ-45 1GbE
- Processor
- Realtek RTD1619B
- RAM Capacity
- 2 GB DDR4
- Included Storage
- 8TB
- Processor Cores
- Quad-Core
View on Amazon: Synology 2-Bay 8TB NAS Affiliate link
The Synology DS223 is a 2-bay NAS featuring a Realtek RTD1619B quad-core processor and 2 GB of DDR4 RAM. It includes 1TB of storage in this bundle and offers one 1GbE LAN port. The unit supports hot-swap drives and provides three USB 3.2 Gen 1 ports. This configuration suits users who need reliable local storage with straightforward networking capabilities.
Pros
- Realtek RTD1619B quad-core 1.7 GHz processor
- 2 GB DDR4 non-ECC system memory
- Three USB 3.2 Gen 1 ports
- Hot-swap drive bay support
Cons
- Single 1GbE LAN port limits network speed
- 2 GB RAM is lower than the DS225+ and DS725+
- No 2.5GbE connectivity for faster transfers
Good fit if
- You need a reliable 2-bay NAS for basic file storage
- You prefer a quad-core processor for stable performance
- You want hot-swap drive convenience without extra cost
Skip if
- You require 2.5GbE network speeds for large file transfers
- You plan to run multiple virtual machines or heavy Docker containers
- You need more than 2 GB of RAM for multitasking
Verdict: Synology DS223 8TB NAS provides a solid quad-core foundation and hot-swap capability for standard home or small office storage needs, though its single 1GbE port and limited RAM restrict advanced multitasking.
TerraMaster F2-423 2-Bay NAS
Best for: Users needing 4GB RAM and 2.5GbE ports
- Drive Bays
- 2-Bay
- Network Connectivity
- Two 2.5GbE Ports
- Processor
- Celeron N5095 Quad-Core
- RAM Capacity
- 4GB DDR4
- M.2 NVMe Slots
- 2 slots
- Included Storage
- No Hard Drive Included
View on Amazon: TerraMaster F2-423 2-Bay NAS Affiliate link
The TerraMaster F2-423 is a 2-bay NAS featuring an Intel Celeron N5095 quad-core processor and 4GB of DDR4 RAM. It offers two 2.5GbE ports for faster network transfers and includes two M.2 NVMe slots for SSD caching. This setup supports RAID 0/1 and various server applications. It suits users needing higher memory and network speeds than standard entry-level models provide.
Pros
- 4GB DDR4 RAM for better multitasking
- Intel Celeron N5095 quad-core processor
- Two 2.5GbE LAN ports
- Two M.2 NVMe slots for caching
Cons
- Only two 2.5GbE ports instead of 10GbE
- No mention of dual-GigE backup ports
- Proprietary OS limits app ecosystem
Good fit if
- You need 4GB RAM for virtual machines
- You want faster 2.5GbE network speeds
- You plan to use SSD caching
Skip if
- You require 10GbE networking
- You prefer Synology DSM software
- You need more than two drive bays
Verdict: TerraMaster F2-423 2-Bay NAS with 4GB RAM delivers strong performance for users who prioritize RAM and network speed over brand-specific software.
QNAP TS-264 2-Bay Desktop NAS
Best for: High-performance 2-bay NAS with 8GB RAM
- Drive Bays
- 2 Bay
- Network Connectivity
- Dual 2.5GbE
- Processor
- Intel Celeron N5105/N5095
- RAM Capacity
- 8GB DDR4
- M.2 NVMe Slots
- Dual M.2 PCIe Gen3x1
- Included Storage
- Diskless
View on Amazon: QNAP TS-264 2-Bay Desktop NAS Affiliate link
The QNAP TS-264 is a 2-bay desktop NAS with an Intel Celeron quad-core processor and 8GB of DDR4 RAM. It features dual 2.5GbE ports and two M.2 NVMe slots for cache or storage. This setup supports fast file transfers and expansion via USB 3.2 and PCIe slots. It suits users needing high performance and expandability for media or team sharing.
Pros
- 8GB DDR4 RAM for smooth multitasking
- Dual 2.5GbE network ports for speed
- Two M.2 NVMe SSD slots for cache
- Intel Celeron quad-core processor
Cons
- Larger physical footprint than compact alternatives
- No 1GbE ports listed for legacy compatibility
- Higher power draw due to 8GB RAM
Good fit if
- You need fast network transfers for large files
- You want to add NVMe SSDs for caching
- You require 8GB of RAM for virtual machines
Skip if
- You prefer a smaller desktop footprint
- You only need basic 1GbE connectivity
- You want a simpler setup without expansion slots
Verdict: QNAP TS-264 8GB RAM NAS offers strong performance for users who prioritize speed and expandability over compact size. It is ideal for those who need NVMe caching and dual 2.5GbE ports for heavy workloads.
Synology 2-Bay NAS with 8TB Storage
Best for: Basic file storage and media sharing
- Drive Bays
- 2-Bay
- Network Connectivity
- 1x 1GbE
- Processor
- Realtek RTD1619B
- RAM Capacity
- 1GB DDR4
- Included Storage
- 8TB
- Processor Cores
- Quad-Core
View on Amazon: Synology 2-Bay NAS with 8TB Storage Affiliate link
The Synology DS223j is a 2-bay NAS bundle including 8TB of storage via two 4TB Seagate IronWolf drives. It uses a Realtek RTD1619B quad-core processor and 1GB of DDR4 RAM. Connectivity relies on a single 1GbE LAN port and two USB 3.2 ports. This setup suits users who need reliable file storage and basic media management without needing high-speed network transfers or heavy computational tasks.
Pros
- Includes 8TB total storage with two 4TB drives
- Realtek RTD1619B quad-core 1.7 GHz processor
- Single 1GbE LAN port for standard networking
- Two USB 3.2 Gen 1 ports for expansion
Cons
- Only 1GB of DDR4 RAM limits multitasking
- Single 1GbE port lacks 2.5GbE speed
- No mention of included SSD cache support
Good fit if
- You need a simple, affordable storage solution
- You primarily store files and media locally
- You do not require high-speed network transfers
Skip if
- You need fast 2.5GbE network connectivity
- You plan to run multiple heavy applications
- You require more than 8TB of storage
Verdict: Synology DS223j 8TB NAS is a practical entry-level option for basic file storage. It fits users who prioritize capacity and simplicity over speed and advanced features.
Synology DS223j 4TB 2.5 Inch SSD NAS
Best for: Quiet, pre-configured 2.5-inch SSD storage
- Drive Bays
- 2-Bay
- Network Connectivity
- 1GbE
- Processor
- RTD1619B 4-Core 1.7GHz
- RAM Capacity
- 1GB DDR4
- Included Storage
- 4TB
- Form Factor
- 2.5 Inch
View on Amazon: Synology DS223j 4TB 2.5 Inch SSD NAS Affiliate link
This Synology DS223j NAS comes with 4TB of 2.5-inch SSD storage pre-installed. It uses a quad-core 1.7GHz RTD1619B processor and 1GB of DDR4 memory. The unit includes a single 1GbE port. You get efficient operation with low energy consumption at 17.3 W. The Btrfs file system and snapshot technology protect your data from corruption. This setup is ideal for users who want fast, quiet storage without installing drives themselves.
Pros
- Includes 4TB (2 x 2TB) 2.5-inch SSDs
- Quad-core 1.7GHz RTD1619B processor
- Low energy consumption at 17.3 W
- Btrfs file system with snapshot technology
Cons
- Only one 1GbE network port
- Single 1GB DDR4 memory module
- No mention of 2.5-inch drive compatibility in other slots
Good fit if
- You want a quiet, low-power NAS for home use
- You prefer pre-installed 2.5-inch SSDs for speed
- You need basic data protection with snapshots
Skip if
- You require 10GbE network connectivity
- You need expandable RAM beyond 1GB
- You want to install 3.5-inch drives
Verdict: Synology DS223j 4TB 2.5 Inch SSD NAS offers a ready-to-use, energy-efficient solution for small offices or homes. You get fast SSD storage and data protection without the hassle of installing drives. It fits users who prioritize quiet operation and simplicity over high-end networking.
Synology DS223j 16TB 3.5 Inch NAS
Best for: high-capacity home storage
- Drive Bays
- 2-Bay
- Network Connectivity
- 1 x 1GbE
- Processor
- RTD1619B 4-Core 1.7GHz
- RAM Capacity
- 1GB DDR4
- Included Storage
- 16TB
- Form Factor
- 3.5 Inch
View on Amazon: Synology DS223j 16TB 3.5 Inch NAS Affiliate link
This Synology DiskStation DS223j is a 2-bay NAS designed for high-capacity storage using 3.5-inch hard drives. It features a quad-core 1.7GHz processor and 1GB of DDR4 memory. The unit supports up to 16TB of data across two 8TB drives. It includes a single 1GbE network port and uses the Btrfs file system for data protection. This model suits users who need reliable, efficient storage for home or small office files.
Pros
- Quad-core 1.7GHz RTD1619B processor
- 16TB capacity with two 8TB 3.5-inch HDDs
- Low 17.3 W energy consumption
- Btrfs file system with snapshot technology
Cons
- Only one 1GbE network port
- Limited to 1GB of DDR4 memory
- No mention of USB expansion ports
Good fit if
- You need a simple, high-capacity storage solution for 3.5-inch drives
- You prioritize energy efficiency in your NAS setup
- You want Synology's Btrfs file system for data protection
Skip if
- You require fast 2.5GbE or 10GbE network speeds
- You need more than 16TB of storage capacity
- You plan to run memory-intensive applications
Verdict: Synology DS223j 16TB NAS is a solid choice for users who value high storage capacity and energy efficiency over network speed. It fits well for home users who need reliable file backup and sharing without complex networking requirements.
Specifications side by side
| Spec | Synology DiskStation 8TB 2-Bay NAS | Synology 2-Bay 8TB NAS | TerraMaster F2-423 2-Bay NAS | QNAP TS-264 2-Bay Desktop NAS | Synology 2-Bay NAS with 8TB Storage | Synology DS223j 4TB 2.5 Inch SSD NAS | Synology DS223j 16TB 3.5 Inch NAS |
|---|---|---|---|---|---|---|---|
| Drive Bays | 2-Bay | 2-Bay | 2-Bay | 2 Bay | 2-Bay | 2-Bay | 2-Bay |
| Network Connectivity | not stated | 1 x RJ-45 1GbE | Two 2.5GbE Ports | Dual 2.5GbE | 1x 1GbE | 1GbE | 1 x 1GbE |
| Processor | Intel Celeron J4125 Quad-Core | Realtek RTD1619B | Celeron N5095 Quad-Core | Intel Celeron N5105/N5095 | Realtek RTD1619B | RTD1619B 4-Core 1.7GHz | RTD1619B 4-Core 1.7GHz |
| RAM Capacity | 2 GB Non-ECC DDR4 SODIMM | 2 GB DDR4 | 4GB DDR4 | 8GB DDR4 | 1GB DDR4 | 1GB DDR4 | 1GB DDR4 |
| M.2 NVMe Slots | not stated | not stated | 2 slots | Dual M.2 PCIe Gen3x1 | not stated | not stated | not stated |
| Included Storage | 8TB | 8TB | No Hard Drive Included | Diskless | 8TB | 4TB | 16TB |
| RAID Support | Synology Hybrid RAID (SHR) | not stated | RAID 0/1 | not stated | not stated | not stated | not stated |
| Form Factor | not stated | not stated | not stated | Desktop | not stated | 2.5 Inch | 3.5 Inch |
| Hardware Interface | not stated | not stated | not stated | M.2 NVMe | not stated | not stated | not stated |
| Number of Bays | 2-Bay | 2-Bay | 2-Bay | 2-Bay | 2-Bay | not stated | not stated |
| Size | 8TB | 8TB | not stated | 2 Bay (Unav.) | 8TB | b) 4TB (2 x 2TB) 2.5" SSDs | b) 16TB (2 x 8TB) 3.5" HDD |
| Processor Cores | Quad-Core | Quad-Core | Quad-Core | Quad-Core | Quad-Core | Quad-Core | Quad-Core |
| Dimensions | 11.8 × 11 × 4.72 inches | 9.17 × 4.25 × 6.5 inches | not stated | 13 × 9 × 11 inches | 8.86 × 3.94 × 6.5 inches | 12 × 6 × 12 inches | 12 × 6 × 12 inches |
| Weight | 4.41 pounds | 6.68 pounds | not stated | 5.11 pounds | 5.84 pounds | not stated | not stated |
| Color | Black | Seagate IronWolf | not stated | Clear | Seagate IronWolf | White | White |
| Model | DS225+/8TB-IW | not stated | not stated | TS-264-8G-US | not stated | DS223j | DS223j |
If you need additional drive bays, compare aoostar wtr pro 4 2 bay NAS mini PC alternatives.
Frequently asked questions
Does the TerraMaster F2-423 have more RAM than the Synology DS225+?
Yes, the TerraMaster F2-423 includes 4GB of RAM. This is double the capacity of the Synology DS223, which has 2GB. While the DS225+ does not list a specific RAM amount in the provided data, the TerraMaster offers more memory for multitasking. This makes it a strong option if you need extra headroom for running multiple applications simultaneously.
Which NAS provides the fastest network connection speeds?
The Synology DS225+ and the QNAP TS-264 both offer the fastest connectivity. They feature 5GbE and 2.5GbE ports. Most other models on this list rely on standard 1GbE ports. If you transfer large files frequently, the higher bandwidth of the DS225+ and TS-264 will significantly reduce wait times compared to slower 1GbE alternatives.
Can I use NVMe drives for caching in these 2-bay NAS units?
The QNAP TS-264 supports M.2 NVMe drives for caching. This allows for faster read and write speeds for frequently accessed data. The Synology DS225+ focuses on Btrfs snapshots and expandable RAM rather than NVMe caching. Other models listed do not mention NVMe support, so the TS-264 is the primary choice for this feature.
Is there a quiet NAS option that comes pre-installed with drives?
The Synology DS223j with 2.5-inch SSDs is a quiet, pre-configured solution. It comes with two 2TB SSDs installed, so you do not need to add drives yourself. SSDs have no moving parts, which reduces noise significantly compared to traditional hard drives. This model is ideal for home offices where low noise and simplicity are priorities.
Which model offers the highest storage capacity in a 2-bay form factor?
The Synology DS223j 16TB model offers the highest capacity. It uses two 8TB 3.5-inch hard drives for a total of 16TB. The other models typically feature 8TB configurations. If you need maximum space for media libraries or backups without expanding to a larger chassis, the 16TB DS223j is the clear choice for high-capacity storage.
Does the Synology DS223 allow you to replace drives while the system is running?
Yes, the Synology DS223 supports hot-swap drive bays. This feature lets you replace a failed drive without powering down the NAS. The DS225+ does not list hot-swap capability in its attributes. If you need to maintain uptime during drive maintenance, the DS223 provides this convenience for basic home or small office storage needs.
Which NAS is best for users who prioritize data integrity over raw speed?
The Synology DS225+ is best for data integrity. It uses the Btrfs file system, which supports snapshots for flexible data protection. This helps prevent data loss from accidental deletions or corruption. While other models offer speed or capacity, the DS225+ is designed for users who value robust data protection and flexible networking in a compact 2-bay form factor.