Buffalo SSD-PUT500U3B
Score: 81/100
Netac ZX20 256GB
Score: 77/100Rankings
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 ZX20L 256 GB Extreme Portable SSD delivers flagship-class NVMe speeds (up to 2000 MB/s) in an aluminum, shock- and dust-resistant case, but its reliability is questioned due to reported early failures and limited after-sales support.
| Attribute | | |
|---|---|---|
500 GBbest | 256 GB | |
600 MB/s | 2,000 MB/sbest | |
500 MB/s | 1,700 MB/sbest | |
| ↓ lower better | 17 gbest | 100 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 | 256 GB |
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB-C 3.2 Gen 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 | 100 g |
Form Factor | Pen drive | 2.5-inch external |
Power & Connectivity(1) | ||
Included Cable Type | USB‑A to USB‑C adapter | USB-C to C and USB-C to A |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, ChromeOS, PS4, PS5, Xbox One, Xbox Series X/S | Windows, macOS, Linux, Android, iOS, consoles |
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 Netac ZX20L delivers impressive raw performance thanks to its NVMe architecture, positioning it as a fast yet budget-friendly option. However, they caution that the use of a DRAM-less YeeStor controller, unbranded TLC NAND, and the absence of disclosed endurance ratings make long-term reliability questionable.
Everyday users praise the drive's speed and pocket-friendly size, often highlighting its value for casual file transfers and occasional boot use. Recurring complaints focus on sudden failures within months, data loss during crashes, and unresponsive customer service.
“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.”
