Netac ZX20 512GB
Score: 69/100
Lexar SL500 1TB
Score: 74/100Rankings
The Lexar SL500 Portable SSD delivers a sleek, credit-card-sized form factor with impressive advertised speeds and solid durability (IP54, 2 m drop). It's ideal for creators needing a lightweight, encrypted drive, though actual transfer rates may fall short of the 2000 MB/s claim without a compatible host.
The Netac ZX20 512 GB Extreme Portable SSD delivers flagship-class NVMe speeds in a lightweight, aluminum-cased package, making it ideal for professionals needing rapid data transfers. Its lack of encryption, possible thermal throttling, and heavier weight compared to some rivals are trade-offs to consider.
| Attribute | | |
|---|---|---|
512 GB | 1,000 GBbest | |
2,000 MB/sbest | 2,000 MB/sbest | |
1,700 MB/s | 1,800 MB/sbest | |
3 years | 5 yearsbest | |
| ↓ lower better | 82 g | 43 gbest |
| ↓ lower better | 8 mm | 4.8 mmbest |
| ↓ lower better | 71.5 mmbest | 83.8 mm |
| ↓ lower better | 43.5 mmbest | 53.3 mm |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(2) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2×2 |
Sequential Write Speed (MB/s) | 1700 MB/s | 1800 MB/s |
Warranty & Support(1) | ||
Warranty Period (years) | 3 years | 5 years |
Security(1) | ||
Hardware Encryption | false | true |
Compatibility(1) | ||
Supported Operating Systems | Windows, macOS, Linux, Android, gaming consoles, smartphones with USB OTG | Windows, macOS, Android, Harmony OS |
Storage(2) | ||
Storage Capacity (GB) | 512 GB | 1000 GB |
NAND Type | NVMe | 3D TLC |
Power(1) | ||
Power Source | USB | Bus-powered |
Build & Design(5) | ||
Weight (g) | 82 g | 43 g |
Thickness (mm) | 8 mm | 4.8 mm |
Length (mm) | 71.5 mm | 83.8 mm |
Width (mm) | 43.5 mm | 53.3 mm |
IP Rating | Dust resistant | IP54 |
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 limited long-term reliability data.
Everyday users overwhelmingly praise the drive's speed, pocket-size form factor, and inclusion of both Type-C and Type-A cables, but report occasional recognition problems with older hardware, warmth during long transfers, and a perception of less premium internal build.
Professional reviewers commend the SL500 for its premium, compact design, solid durability, and competitive pricing, noting that it delivers very fast transfers when paired with a suitable Gen 2×2 or USB 4.0 host. They point out that real-world performance often lags behind the 2000 MB/s claim and that users without the appropriate port will not experience the drive's full speed potential.
Everyday users appreciate the drive's pocket-sized form factor, reliable build, and sufficient speed for on-the-go 4K editing, as well as the added security of encryption. Common complaints revolve around the gap between advertised and actual speeds, the absence of a USB-A adapter, and the lack of MagSafe support.
“blazing-fast transfer speeds”
“compact size and lightweight design are ideal for travel and fieldwork”
“drive can become warm during extended transfers”
