
ADATA SE880 500GB
Score: 88/100
Netac ZX20 512GB
Score: 50/100Rankings

The ADATA SE880 500 GB delivers flagship-class 2 GB/s speeds in a lightweight magnesium-alloy package, offering broad compatibility but lacking encryption and ruggedness.

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 | |
2,000 MB/sbest | 2,000 MB/sbest | |
2,000 MB/sbest | 1,700 MB/s | |
| ↓ lower better | 31 gbest | 82 g |
60 monthsbest | 36 months |
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) | ||
Interface | USB 3.2 Gen 2x2 | USB 3.2 Gen 2 |
Sequential Write Speed (MB/s) | 2000 MB/s | 1700 MB/s |
Build & Design(2) | ||
Weight (g) | 31 g | 82.0 g |
Form Factor | External SSD | Portable |
Warranty(1) | ||
Warranty Period (months) | 60 months | 36 months |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Android, Xbox, PlayStation, iPad, iPhone | Windows, macOS, Linux, Android, consoles, smartphones |
Technical Specs(1) | ||
NAND Type | TLC | NVMe |


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

Professional reviewers praise the blistering 2,000 MB/s burst speeds and compact chassis, while noting the drop in sustained write performance and the need for a Gen2x2 host.
Everyday users love the lightning-quick transfers and pocket-size design, but complain about speed drops on large files and the absence of encryption.

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.
“Extremely fast read/write speeds up to 2,000 MB/s”

“Ultra-compact and lightweight (31 g)”

“No hardware encryption - felt insecure for sensitive files”


