Buffalo TeraStation TS3420R
Score: 74/100
Terramaster F4 SSD
Score: 57/100Rankings
A secure, rack-mountable 4-bay NAS with built-in drives, 2.5 GbE networking and strong encryption, aimed at small offices and home labs, but constrained by modest memory and lack of performance-enhancing features.

A compact 4-bay all-SSD NAS with an Intel N95 CPU, 5 GbE, and strong media capabilities, ideal for home media enthusiasts.
| Attribute | Buffalo TeraStation TS3420R | ![]() |
|---|---|---|
32 TBbest | 32 TBbest | |
4best | 4best | |
2.5 Gbps | 5 Gbpsbest | |
— | 4best | |
1 GB | 8 GBbest | |
| ↓ lower better | 100 W | 32 Wbest |
| ↓ lower better | — | 19 dBbest |
3 yearsbest | 2 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | Buffalo TeraStation TS3420R | ![]() |
|---|---|---|
Security(1) | ||
OS Compatibility | Windows, macOS, Linux | TOS 6 |
Performance(4) | ||
CPU Model | Annapurna Labs Alpine AL214 | Intel N95 |
System Memory (GB) | 1 GB | 8 GB |
Ethernet Speed (Gbps) | 2.5 Gbps | 5 Gbps |
Power Consumption (Active) (W) | 100 W | 32 W |
Build & Design(2) | ||
Weight (kg) | 7.7 kg | 0.6 kg |
Warranty Period (years) | 3 years | 2 years |
Connectivity(1) | ||
USB Ports | 2 | 3 |
Storage & Capacity(2) | ||
RAID Support | RAID 0,1,5,6,10,JBOD | TRAID, TRAID+, RAID 0, 1, 5, 6, 10, JBOD, Single |
Supported Drive Types | 3.5" SATA III | 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 view the TeraStation Essentials as a solid, security-focused NAS that delivers enterprise-grade features at a modest price, highlighting its built-in drives, 2.5 GbE port and comprehensive warranty, while noting the omission of iSCSI, failover and SSD caching as trade-offs for its lower cost.
Everyday users praise the device for its straightforward, out-of-the-box setup, reliable support and robust security, but commonly express concerns about limited memory, the default RAID5 capacity reduction and the lack of performance-enhancing features such as SSD cache or 10 GbE.

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.
“Pre-configured RAID5 with four 2 TB drives for immediate plug-and-play deployment”
“Only 1 GB DDR3 RAM may limit performance under heavy concurrent access”
“Hybrid cloud integration with Amazon S3, Dropbox, Azure and OneDrive”