SSK Portable SSD 256GB
Score: 53/100
Netac ZX20 256GB
Score: 77/100Rankings
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 Portable SSD delivers fast USB 3.2 Gen 2 performance in a lightweight aluminum enclosure, with broad compatibility but limited capacity and no built-in encryption.
| Attribute | | |
|---|---|---|
256 GBbest | 256 GBbest | |
550 MB/s | 2,000 MB/sbest | |
500 MB/s | 1,700 MB/sbest | |
| ↓ lower better | 43 gbest | 100 g |
— | 36 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB-C 3.2 Gen 2 |
Sequential Read Speed (MB/s) | 550 MB/s | 2000 MB/s |
Sequential Write Speed (MB/s) | 500 MB/s | 1700 MB/s |
Build & Design(2) | ||
Weight (g) | 43 g | 100 g |
Form Factor | Portable | 2.5-inch external |
Power & Connectivity(1) | ||
Included Cable Type | USB-A to USB-C, USB-C to USB-C | USB-C to C and USB-C to A |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android | Windows, macOS, Linux, Android, iOS, consoles |
Products in the top-left offer the best value (high score, low price).
Professional reviewers note performance comparable to premium models like the Samsung T5 while keeping costs low, praising the aluminum enclosure and dual cables but pointing out the lack of encryption as a drawback.
Everyday users rate the drive highly for speed and portability, though they mention the modest 256 GB size and occasional write-speed throttling.
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.
“Transferred 100GB of photos in under 4 minutes.”
“Perfect for backing up my Steam games and moving them to a new PC.”
“Light enough to leave plugged into my laptop all the time.”
