Netac ZX20 256GB
Score: 77/100
SSK 256GB SSD
Score: 70/100Rankings
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.
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 | | |
|---|---|---|
256 GBbest | 256 GBbest | |
2,000 MB/sbest | 550 MB/s | |
1,700 MB/sbest | 500 MB/s | |
| ↓ lower better | 100 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 | | |
|---|---|---|
Performance(3) | ||
Interface | USB-C 3.2 Gen 2 | USB 3.2 Gen2 |
Sequential Read Speed (MB/s) | 2000 MB/s | 550 MB/s |
Sequential Write Speed (MB/s) | 1700 MB/s | 500 MB/s |
Build & Design(2) | ||
Weight (g) | 100 g | 27 g |
Form Factor | 2.5-inch external | M.2 2280 |
Power & Connectivity(2) | ||
Power Source | Bus-powered | USB |
Included Cable Type | USB-C to C and USB-C to A | USB‑C to USB‑C, USB‑A adapter |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android, iOS, consoles | Windows, macOS, Linux, Android, iOS, Xbox, PS4, Smart TVs |
Products in the top-left offer the best value (high score, low price).
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.
Users appreciate the speed and price, yet many report failures, overheating, and data loss, making it a risky choice for critical data.
“handy”
“lightweight”
“ridiculously hot”
