
Qnap TS-873A-8G
Score: 82/100
Buffalo TeraStation Essentials 2025
Score: 78/100Rankings

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.

Buffalo's TeraStation Essentials 2025 provides 16 TB of pre-configured RAID-5 storage with 2.5 GbE networking and enterprise-grade security features. The modest 2 GB RAM and 2.0 GHz quad-core CPU may constrain demanding applications, and power draw peaks at 85 W. Best suited for small businesses seeking an all-in-one secure NAS.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 16 TBbest | |
8best | 4 | |
4best | — | |
2.2 GHzbest | 2 GHz | |
8 GBbest | 2 GB | |
4best | 2 | |
2best | 2best | |
2.5 Gbpsbest | 2.5 Gbpsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Drive Bays | 8 | 4 |
Performance(3) | ||
CPU Model | AMD Ryzen V1500B | Alpine AL-524 |
CPU Clock Speed (GHz) | 2.2 GHz | 2.0 GHz |
Memory (RAM) (GB) | 8 GB | 2 GB |
Connectivity(1) | ||
USB Ports | 4 | 2 |
Power(2) | ||
Power Consumption (Idle) (W) | 25.7 W | 20-48 W |
Power Consumption (Active) (W) | 54.1 W | 29-57 W |
Build & Design(1) | ||
Dimensions (H×W×D) (cm) | 28.1×29.5×18.8 cm cm | 37.6×36.6×31.5 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.



Professional reviewers and editors have not published independent evaluations of this 2025 model; manufacturer materials position it as a business-class value solution with emphasis on easy deployment, built-in security, and cloud sync capabilities.
No consumer reviews or forum discussions were found in the source data, so user sentiment cannot be assessed beyond the promotional claims repeated in listings.