
Qnap TR-004U
Score: 74/100
Synology DS925+
Score: 88/100Rankings

The Synology DiskStation DS925+ is a high-performance 4-bay NAS powered by an AMD Ryzen V1500B CPU, dual 2.5 GbE networking, and ECC memory with M.2 NVMe caching. It lacks native 10 GbE and requires a separate expansion unit for additional bays. Targeted at small businesses and prosumers needing scalable, reliable storage.

The QNAP TR-004U is a 1U rack-mountable 4-bay expansion enclosure that offers flexible RAID options and hot-swappable trays. Its reliance on USB 3.2 Gen 1 and lack of built-in networking can limit throughput. Ideal for data-center environments needing compact local storage expansion.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 200 TBbest | |
4best | 4best | |
— | 4best | |
— | 2.2 GHzbest | |
— | 4 GBbest | |
239.1 MB/s | 522 MB/sbest | |
224.8 MB/s | 565 MB/sbest | |
— | 3best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Sequential Read Speed (MB/s) | 239.1 MB/s | 522 MB/s |
Sequential Write Speed (MB/s) | 224.8 MB/s | 565 MB/s |
Power(2) | ||
Power Consumption (Idle) (W) | 4.79 W | 35 W |
Power Consumption (Active) (W) | 18.9 W | 50 W |
Build & Design(2) | ||
Weight (kg) | 2 kg | 2.26 kg |
Dimensions (H×W×D) (cm) | 20×42×54 cm cm | 19.89 x 16.61 x 22.30 cm cm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consider the DS925+ a solid, future-proof 4-bay NAS for small businesses, emphasizing its ECC memory, strong Ryzen CPU, and fast 2.5 GbE networking.
Everyday users generally commend the DS925+ for its quiet operation, low power consumption, and flexible expandability, especially the option to add NVMe caching.