
Buffalo TS3430D1604S
Score: 73/100Terramaster U4-500
Score: 46/100Rankings

The TeraStation Essentials 2025 is a 4-bay NAS with pre-installed HDDs, 2.5 GbE networking and strong security features, aimed at small-office environments that value data protection and remote management. It offers solid reliability but lacks advanced features like snapshots and high-speed networking.
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 |
|---|---|---|
16 TB | 96 TBbest | |
4best | 4best | |
2.5 Gbps | 10 Gbpsbest | |
4 | 6best | |
2 GB | 8 GBbest | |
| ↓ lower better | 85 Wbest | — |
| ↓ lower better | — | 34.5 dBbest |
3 yearsbest | 2 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | Terramaster U4-500 |
|---|---|---|
Performance(4) | ||
CPU Model | Annapurna Labs Alpine AL-214 | Intel i3-1215U |
CPU Cores | 4 | 6 |
System Memory (GB) | 2 GB | 8 GB |
Ethernet Speed (Gbps) | 2.5 Gbps | 10 Gbps |
Build & Design(2) | ||
Weight (kg) | 7.08 kg | 6.2 kg |
Warranty Period (years) | 3 years | 2 years |
Connectivity(2) | ||
Link Aggregation Support | false | true |
USB Ports | 2 | 4 |
Storage & Capacity(3) | ||
Maximum Raw Capacity (TB) | 16 TB | 96 TB |
RAID Support | RAID 0, 1, 5, 6, 10, JBOD | RAID 0, 1, 5, 6, 10, JBOD, Single, TRAID, TRAID+ |
Supported Drive Types | HDD (CMR) | SATA III, NVMe PCIe 4.0 x4 (caching) |

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

Professional reviewers praise the TeraStation Essentials for its security-first architecture, reliable Japanese build quality, and responsive 24/7 US support, positioning it as a solid, low-maintenance NAS for SMBs that value data protection over advanced feature sets.
Everyday users highlight the device's ease of setup, robust encryption, and dependable remote management, while noting the lack of a mobile app and slower RAID rebuilds as drawbacks.
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.
“Extremely easy to use”

“These TeraStations are their newest products & I liked getting to buy this newer generation specifically as it's more user friendly than our older 5000 series.”

