Buffalo External SSD USB-A 1TB
Score: 79/100
SSK 256GB SSD
Score: 70/100Rankings
Buffalo's 1 TB SSD-PUT is a thumb-drive-sized external SSD that delivers solid 600 MB/s read performance in a rugged, MIL-STD-810G package, though it needs a firmware update and uses an adapter for USB-C connectivity.
The SSK 256 GB SSD offers decent speeds and excellent portability at a low price, but reliability concerns and overheating have been reported by users.
| Attribute | | |
|---|---|---|
1,000 GBbest | 256 GB | |
600 MB/sbest | 550 MB/s | |
500 MB/sbest | 500 MB/sbest | |
| ↓ lower better | 68 g | 27 gbest |
36 monthsbest | — | |
| ↓ lower better | — | 42.5 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 1000 GB | 256 GB |
Performance(2) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen2 |
Sequential Read Speed (MB/s) | 600 MB/s | 550 MB/s |
Build & Design(2) | ||
Weight (g) | 68 g | 27 g |
Form Factor | Thumb-drive | M.2 2280 |
Power & Connectivity(2) | ||
Power Source | Bus-powered | USB |
Included Cable Type | USB‑A to USB‑C adapter | USB‑C to USB‑C, USB‑A adapter |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, ChromeOS, PS4, PS5, Xbox One, Xbox Series X/S | Windows, macOS, Linux, Android, iOS, Xbox, PS4, Smart TVs |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the SSD-PUT for its miniaturization, solid-state performance in a thumb-drive form factor, and rugged build, but note its modest PCMark score and the need for a firmware update, positioning it as a portable alternative rather than a high-end external SSD.
Everyday users love the tiny size, speed for file transfers, and durability, especially for gaming consoles and travel, while recurring frustrations focus on the required firmware update and the easily misplaced USB-C adapter.
Users appreciate the speed and price, yet many report failures, overheating, and data loss, making it a risky choice for critical data.
“So small and fast!”
“Works perfectly with PS5”
“Durable and reliable”
