PNY Pro Elite 256GB
Score: 85/100
SSK Dual USB-C 128GB
Score: 89/100Rankings
The SSK 128 GB dual-head flash drive delivers SSD-level speeds in a rugged metal case, offering USB-C and USB-A 3.2 Gen2 connectivity and extensive OS support. Its durability features make it ideal for creators on the move, though its size and occasional speed throttling near capacity are trade-offs.
The PNY PRO Elite 256 GB USB-A flash drive delivers high read performance and a rugged metal body, making it ideal for large file transfers and bootable media. However, sustained writes suffer once the 64 GB pSLC cache is depleted and the drive lacks hardware encryption.
| Attribute | PNY Pro Elite 256GB | |
|---|---|---|
256 GBbest | 128 GB | |
400 MB/s | 550 MB/sbest | |
180 MB/s | 520 MB/sbest | |
| ↓ lower better | 30 gbest | 37 g |
| ↓ lower better | 134.11 mm | 78 mmbest |
| ↓ lower better | 99.31 mm | 20.5 mmbest |
| ↓ lower better | 11.43 mm | 8.6 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | PNY Pro Elite 256GB | |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 256 GB | 128 GB |
Performance(2) | ||
Read Speed (MB/s) | 400 MB/s | 550 MB/s |
Write Speed (MB/s) | 180 MB/s | 520 MB/s |
Physical(5) | ||
Weight (g) | 30 g | 37 g |
Length (mm) | 134.11 mm | 78 mm |
Width (mm) | 99.31 mm | 20.5 mm |
Height (mm) | 11.43 mm | 8.6 mm |
Material | Metal | Zinc alloy |
Connectivity(1) | ||
USB Interface | USB 3.1 Gen 1 | USB-C/USB-A 3.2 Gen2 |
Compatibility(1) | ||
Operating System Compatibility | Windows/macOS/Linux | Windows, macOS, Linux, Android, iOS |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight the drive's impressive sequential read speeds and robust metal construction, confirming short-burst performance claims, but note that sustained writes suffer after the cache is exhausted and the lack of encryption may concern security-focused users.
Everyday users rate the drive highly for its speed, durability, and premium feel, while common complaints focus on slower write speeds, occasional USB-version confusion, and the protruding connector.
Professional reviewers highlight the SSK SD301 as a rare flash drive that delivers SSD-class throughput while offering a dual-head USB-C/USB-A design, making it ideal for creators who need to move large media files between phones and laptops.
Everyday users consistently praise the drive's blazing fast transfers and sturdy feel, calling it "very handy for video editing" and noting flawless operation with iPhone 15 and MacBook.
“feeling like a metal tank”
“way nicer than SanDisk”
“Fast transfer speeds”
