
Netac ZX20 512GB
Score: 50/100
Move Speed WD 05
Score: 50/100Rankings

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.

The MOVE SPEED 256 GB SSD blends decent USB 3.2 Gen 1 performance with biometric AES-256 encryption and a sturdy zinc-alloy body. It shines for security-focused mobile users, though its capacity and speed are modest and it lacks an IP rating.
| Attribute | ![]() | ![]() |
|---|---|---|
512 GBbest | 256 GB | |
2,000 MB/sbest | 520 MB/s | |
1,700 MB/sbest | 450 MB/s | |
| ↓ lower better | 82 g | 47.78 gbest |
36 months | 60 monthsbest | |
| ↓ lower better | — | 50 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Capacity(1) | ||
Storage Capacity (GB) | 512 GB | 256 GB |
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 1 |
Sequential Read Speed (MB/s) | 2000 MB/s | 520 MB/s |
Sequential Write Speed (MB/s) | 1700 MB/s | 450 MB/s |
Build & Design(2) | ||
Weight (g) | 82.0 g | 47.78 g |
Form Factor | Portable | portable |
Warranty(1) | ||
Warranty Period (months) | 36 months | 60 months |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android, consoles, smartphones | Windows, macOS, Android |
Technical Specs(1) | ||
NAND Type | NVMe | SSD‑grade NAND |


Products in the top-left offer the best value (high score, low price).

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.

Reviewers commend the dual-port design and built-in fingerprint encryption, while noting the absence of an IP rating and limited endurance features.
Users appreciate the speed, fingerprint security and metal feel, but mention occasional recognition issues and missing English documentation.
“blazing-fast transfer speeds”

“compact size and lightweight design are ideal for travel and fieldwork”

“drive can become warm during extended transfers”


