Buffalo SSD-PUT500U3B
Score: 81/100
Netac ZX20 512GB
Score: 50/100Rankings
The Buffalo 500 GB SSD-PUT combines ultra-compact pen-drive dimensions with fast NVMe-over-UASP performance, but its modest PCMark score and lack of a native USB-C port keep it from being a premium choice.
The Netac ZX20 512 GB Extreme Portable SSD offers flagship-class read/write speeds in a feather-light aluminum case, but its lack of encryption and occasional thermal throttling keep it from being a universal winner.
| Attribute | | |
|---|---|---|
500 GB | 512 GBbest | |
600 MB/s | 2,000 MB/sbest | |
500 MB/s | 1,700 MB/sbest | |
| ↓ lower better | 17 gbest | 82 g |
36 monthsbest | 36 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 500 GB | 512 GB |
Performance(2) | ||
Sequential Read Speed (MB/s) | 600 MB/s | 2000 MB/s |
Sequential Write Speed (MB/s) | 500 MB/s | 1700 MB/s |
Build & Design(2) | ||
Weight (g) | 17 g | 82.0 g |
Form Factor | Pen drive | Portable |
Power & Connectivity(1) | ||
Included Cable Type | USB‑A to USB‑C adapter | USB‑C to USB‑C, USB‑C to USB‑A |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, ChromeOS, PS4, PS5, Xbox One, Xbox Series X/S | Windows, macOS, Linux, Android, consoles, smartphones |
Products in the top-left offer the best value (high score, low price).
Professional reviewers laud the SSD-PUT for its groundbreaking miniaturization, NVMe-over-UASP performance and excellent price-to-speed ratio, while noting a modest PCMark score, firmware-update requirement, and lack of a native USB-C connector.
Everyday users praise the pocket-size convenience, lightning-fast file transfers, reliable LED indicator and seamless console compatibility, while recurring complaints focus on the optional third-year warranty registration, feel of the retractable connector, and desire for a built-in USB-C port.
Professional reviewers note that the ZX20's NVMe-based design and USB 3.2 Gen 2 interface place it on par with flagship portable SSDs, highlighting its impressive read/write performance and excellent price-to-performance ratio, while cautioning about potential thermal throttling and unproven long-term endurance.
Everyday users overwhelmingly praise the drive's speed, pocket-size form factor, and the inclusion of both Type-C and Type-A cables, though some report warm temperatures during long transfers and occasional recognition issues with older hardware.
“Fits in my pocket like a flash drive but performs like an SSD.”
“Transfers large video files in seconds-way faster than my old HDD.”
“Works perfectly with my PS5-reduced game load times noticeably.”
