Buffalo External SSD USB-A 1TB
Score: 79/100
Lexar ES3 1TB
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 Lexar ES3 1TB SSD offers ultra-fast USB-C performance in a lightweight metal shell, with software-based 256-bit AES encryption and extensive device compatibility. Its main drawbacks are limited iPhone support and the need to install encryption software.
| Attribute | | |
|---|---|---|
1,000 GB | 1,024 GBbest | |
600 MB/s | 1,050 MB/sbest | |
500 MB/s | 1,000 MB/sbest | |
| ↓ lower better | 68 g | 45 gbest |
36 monthsbest | 36 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 1000 GB | 1024 GB |
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB-C |
Sequential Read Speed (MB/s) | 600 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 500 MB/s | 1000 MB/s |
Build & Design(2) | ||
Weight (g) | 68 g | 45 g |
Form Factor | Thumb-drive | Portable |
Power & Connectivity(2) | ||
Power Source | Bus-powered | Bus-powered via USB |
Included Cable Type | USB‑A to USB‑C adapter | 2‑in‑1 USB‑C to USB‑C with Type‑A adapter |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, ChromeOS, PS4, PS5, Xbox One, Xbox Series X/S | macOS, Windows, Android, iOS, Xbox, PlayStation |
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.
“So small and fast!”
“Works perfectly with PS5”
“Durable and reliable”
Professional reviewers describe the Lexar ES3 as a high-speed, ultra-portable SSD that delivers near-SSD performance in a credit-card-sized metal shell, commending its fast read speed, built-in encryption and plug-and-play experience while noting its console compatibility and warmth under load.
Everyday users rate the drive highly for its speed, build quality and portability, praising the plug-and-play convenience and security features, with complaints about older iPhone incompatibility and cable length.
