
Corsair Flash Survivor Stealth 128GB
Score: 100/100
Vansuny 128GB USB-C
Score: 90/100Rankings

The Corsair Flash Survivor Stealth 128 GB USB 3.0 drive combines a rugged, waterproof aluminum shell with high-speed performance, targeting outdoor professionals and emergency personnel who need durable, fast storage. Its bulkier cylindrical design and occasional data-corruption reports are the main trade-offs.

The Vansuny 128 GB dual-port flash drive offers versatile USB-A and USB-C connectivity, high read/write speeds on the upgraded model, and a compact, lightweight build. It is well-suited for mobile professionals and travelers who need fast cross-device file transfers.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
336.6 MB/s | 450 MB/sbest | |
204.4 MB/s | 400 MB/sbest | |
5 yearsbest | — | |
| ↓ lower better | 36.3 g | 9.1 gbest |
| ↓ lower better | 76.2 mm | 56.9 mmbest |
| ↓ lower better | 22.9 mm | 20.1 mmbest |
| ↓ lower better | 22.9 mm | 9.9 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 336.6 MB/s | 450 MB/s |
Write Speed (MB/s) | 204.4 MB/s | 400 MB/s |
Connectivity(1) | ||
USB Interface | USB 3.0 | USB-A 3.0, USB-C 3.0 |
Compatibility(1) | ||
Compatible Operating Systems | Windows, macOS, Linux | Windows, Linux, macOS, Android |
Design(1) | ||
Material | aluminum | Plastic/Metal |
Physical(4) | ||
Weight (g) | 36.3 g | 9.1 g |
Length (mm) | 76.2 mm | 56.9 mm |
Width (mm) | 22.9 mm | 20.1 mm |
Height (mm) | 22.9 mm | 9.9 mm |

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

Professional reviewers praise the Survivor Stealth for its combination of rugged construction and respectable USB 3.0 speeds, calling it a "fast SSD disguised as a USB drive," while noting the lack of formal IP certification and occasional throttling on sustained transfers.
Everyday users love the drive's indestructibility, often sharing stories of it surviving extreme mishaps, and commend its speed for moving large video files, though many complain about occasional data corruption, the bulky shape, and the default FAT32 file system limitation.

“It survived everything - except holding my data reliably.”



Professional reviewers praise the drive's value, reliable cross-platform compatibility, and near-SSD speeds on the USB 3.2 version, while noting the solid build and dual-port design.
Everyday users appreciate the portability, dual connectors, and speed, but complain about slower write performance on standard units and occasional swivel looseness.