
Buffalo External SSD USB-C 1TB
Score: 58/100
Netac ZX20 512GB
Score: 50/100Rankings

The BUFFALO 1TB External SSD is an ultra-light, PlayStation-licensed portable drive offering 600 MB/s read speeds and shock-resistant construction, aimed at gamers and casual users seeking easy plug-and-play storage.

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 | ![]() | ![]() |
|---|---|---|
1,000 GBbest | 512 GB | |
600 MB/s | 2,000 MB/sbest | |
— | 1,700 MB/sbest | |
| ↓ lower better | 17 gbest | 82 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) | 1000 GB | 512 GB |
Performance(1) | ||
Sequential Read Speed (MB/s) | 600 MB/s | 2000 MB/s |
Build & Design(2) | ||
Weight (g) | 17 g | 82.0 g |
Form Factor | portable | Portable |
Power & Connectivity(1) | ||
Included Cable Type | USB-C | USB‑C to USB‑C, USB‑C to USB‑A |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, PS4, PS5 | Windows, macOS, Linux, Android, consoles, smartphones |

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

Reviewers praise the drive's strong PlayStation integration and high read speed, but note the cheap plastic build and potential long-term performance inconsistencies.
Everyday users appreciate the speed and lightweight form factor for gaming, while some report fragile feel and occasional failures.

“Plugged it in and it worked immediately”

“Fast and reliable performance”

“Feels like it could break if dropped”




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.