
Netac Z Slim 500GB
Score: 50/100
Crucial X9 1TB
Score: 76/100Rankings

The Crucial X9 1TB Portable SSD offers 1050 MB/s speeds, IP55 durability and hardware encryption in a tiny, lightweight package, though some units suffer performance inconsistencies and limited accessories.

The Netac ZSLIM 500GB delivers solid USB 3.2 Gen 2 performance in an ultra-slim, lightweight aluminum case, offering great value for budget-focused buyers, though it lacks rugged features and encryption.
| Attribute | ![]() | ![]() |
|---|---|---|
500 GB | 1,000 GBbest | |
500 MB/s | 1,050 MB/sbest | |
450 MB/s | 1,050 MB/sbest | |
3 yearsbest | 3 yearsbest | |
| ↓ lower better | 30 gbest | 38 g |
| ↓ lower better | 9 mmbest | — |
| ↓ lower better | 100 mm | 65 mmbest |
| ↓ lower better | 294 mm | 50 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2 (USB-C) |
Sequential Read Speed (MB/s) | 500 MB/s | 1050 MB/s |
Sequential Write Speed (MB/s) | 450 MB/s | 1050 MB/s |
Security(1) | ||
Hardware Encryption | false | true |
Compatibility(1) | ||
Supported Operating Systems | Windows, macOS, Android | Windows, macOS, Linux, Android, iPad, Xbox, PlayStation |
Storage(1) | ||
Storage Capacity (GB) | 500 GB | 1000 GB |
Power(1) | ||
Power Source | USB | Bus-powered |
Build & Design(3) | ||
Weight (g) | 30 g | 38 g |
Length (mm) | 100 mm | 65 mm |
Width (mm) | 294 mm | 50 mm |


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

Professional reviewers note that while the Netac ZSLIM 500GB lacks premium features like IP-rating or encryption, it punches above its weight in core performance, offering near-advertised speeds and a compelling price-to-performance ratio.
Everyday users praise the SSD for its speed, portability, and value, often highlighting how quickly it moves large files compared to traditional flash drives. Common complaints revolve around speed drops on extended transfers, the need for a proper USB-C cable, and occasional confusion about the actual usable storage space.

Professional reviewers praise the X9 as a sweet-spot portable SSD, highlighting its compact, rugged design, NVMe-based 10 Gbps performance and encryption, while noting the absence of a Gen 2x2 interface.
Everyday users overwhelmingly rate the X9 highly, lauding its speed, pocketable size and durability, though a minority report occasional slow units and early failures.
“Excellent value for money”

“Faster than expected”

“Perfect for travel”


