
Qnap TR-004U
Score: 74/100
Qnap TS-873A-8G
Score: 82/100Rankings

The QNAP TS-873A-8G is an 8-bay NAS with an AMD Ryzen quad-core processor, expandable up to 64 GB RAM and dual 2.5 GbE ports, delivering strong performance for demanding workloads. It lacks built-in 10 GbE and has a relatively high active power draw. Suited for small-business labs and media servers requiring large capacity and virtualization.

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 | ![]() | ![]() |
|---|---|---|
4 | 8best | |
— | 4best | |
— | 2.2 GHzbest | |
— | 8 GBbest | |
239.1 MB/sbest | — | |
224.8 MB/sbest | — | |
— | 4best | |
— | 2best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Drive Bays | 4 | 8 |
Power(2) | ||
Power Consumption (Idle) (W) | 4.79 W | 25.7 W |
Power Consumption (Active) (W) | 18.9 W | 54.1 W |
Build & Design(2) | ||
Weight (kg) | 2 kg | 8 kg |
Dimensions (H×W×D) (cm) | 20×42×54 cm cm | 28.1×29.5×18.8 cm cm |


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

Professional reviewers consider the TS-873A a solid high-performance NAS that delivers high compute performance for virtualization and media transcoding; eight hot-swappable bays provide up to 64 TB of raw storage; dual 2.5 GbE ports enable faster network transfers; expandable DDR4 memory up to 64 GB with ECC support ensures data integrity; multiple USB 3.2 ports for high-speed peripheral connectivity; optional PCIe slots allow adding 5 GbE/10 GbE adapters for future network upgrades.
Direct consumer reviews are scarce, but the specifications suggest users would likely appreciate the high-speed connectivity, transcoding performance and flexibility for multiple workloads. Potential concerns that surface in discussions revolve around the limited two-bay design and the non-expandable 8 GB RAM, which may restrict future growth.