Terramaster U4-500
Score: 46/100
Terramaster F4 SSD
Score: 57/100Rankings

A compact 4-bay all-SSD NAS with an Intel N95 CPU, 5 GbE, and strong media capabilities, ideal for home media enthusiasts.
A 1U 4-bay rackmount NAS with an Intel i3 CPU, dual 10 GbE, and up to 96 TB raw capacity, aimed at SMBs needing fast backup and media streaming.
| Attribute | Terramaster U4-500 | ![]() |
|---|---|---|
96 TBbest | 32 TB | |
4best | 4best | |
10 Gbpsbest | 5 Gbps | |
6best | 4 | |
8 GBbest | 8 GBbest | |
| ↓ lower better | — | 32 Wbest |
| ↓ lower better | 34.5 dB | 19 dBbest |
2 yearsbest | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | Terramaster U4-500 | ![]() |
|---|---|---|
Performance(4) | ||
CPU Model | Intel i3-1215U | Intel N95 |
CPU Cores | 6 | 4 |
Ethernet Speed (Gbps) | 10 Gbps | 5 Gbps |
Noise Level (dB) | 34.5 dB | 19 dB |
Build & Design(1) | ||
Weight (kg) | 6.2 kg | 0.6 kg |
Connectivity(1) | ||
USB Ports | 4 | 3 |
Storage & Capacity(3) | ||
Maximum Raw Capacity (TB) | 96 TB | 32 TB |
RAID Support | RAID 0, 1, 5, 6, 10, JBOD, Single, TRAID, TRAID+ | TRAID, TRAID+, RAID 0, 1, 5, 6, 10, JBOD, Single |
Supported Drive Types | SATA III, NVMe PCIe 4.0 x4 (caching) | PCIe 3.0/4.0/5.0 NVMe M.2 2280 |

Products in the top-left offer the best value (high score, low price).
Professional reviewers consider the U4-500 a performance leader in the SMB NAS segment, lauding its dual 10 GbE ports, DDR5 memory, and TOS 6 feature set, while noting limitations such as lack of PCIe expansion and modest base RAM.
Everyday users highlight easy setup, fast backup and streaming, but complain about fan noise, a learning curve for RAID/caching, and occasional software glitches.

Professional reviewers praise the F4 SSD as a breakthrough in compact, high-performance NAS design, highlighting its small footprint, quiet dual-fan cooling, upgradable RAM, 5 GbE + HDMI 2.1 connectivity, and robust hardware transcoding. Criticisms focus on limited PCIe lanes, lack of ECC memory, and single 5 GbE port.
Everyday users appreciate the silent operation, tiny form factor, straightforward setup, and flexible TRAID storage, while noting concerns about potential bottlenecks and missing physical security features.