
Corsair Flash Survivor Stealth 128GB Black
Score: 71/100
Vansuny USB Flash Drive 128GB
Score: 71/100Rankings

The Corsair Flash Survivor Stealth 128 GB is a rugged USB-3.0 drive featuring aircraft-grade aluminum housing, 200 m waterproof rating, and 1500 G shock resistance. Its write performance is inconsistent and the long, protruding shape can be cumbersome. Best suited for outdoor workers and travelers needing durable storage.

The Vansuny 128 GB metal USB drive offers a rugged, waterproof design with a retractable USB-A connector and high claimed speeds. In practice, actual transfer rates are modest and the drive lacks a USB-C interface. It is ideal for outdoor workers and travelers who prioritize durability over peak performance.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 128 GBbest | |
— | 400 MB/sbest | |
50 MB/s | 240 MB/sbest | |
| ↓ lower better | 36.3 g | 9 gbest |
5 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 82-241 MB/s | 400 MB/s |
Write Speed (MB/s) | 50 MB/s | 240 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.1 Gen 2 |
Interface | USB Type-A | USB-A |
Build & Design(3) | ||
Weight (g) | 36.3 g | 9 g |
Dimensions (L×W×H) (mm) | 76.2×25.4×25.4 mm mm | 2.54×12.19×48.26 mm |
Material | aluminum | Aluminum alloy, ABS |

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

Professional reviewers commend the Corsair Survivor Stealth for its rugged aluminum build, 200 m waterproof rating, and 1500 G shock resistance, noting it as a solid choice for demanding environments. They also acknowledge the USB 3.0 speed boost over older models but caution that real-world write performance can be erratic and that the uncapped, bulky form factor may be inconvenient for some users.
Everyday users love the drive's ability to survive water, drops, and rough handling, often sharing stories of it surviving submersion or being dropped from heights. However, they are repeatedly disappointed by slower-than-expected transfer speeds and the easy-to-lose cap, and many find the long, protruding shape cumbersome for regular laptop use.

“well built, reliable, fast, and reasonably priced”

“sturdy feeling”



Professional reviewers commend the Vansuny 128GB metal drive for its exceptional ruggedness, waterproof UDP packaging, and plug-and-play ease across platforms, positioning it as a solid value for its price. However, they consistently note that real-world read/write speeds fall well short of the lofty 400 MB/s claim and criticize the single USB-A interface as a limitation compared to newer dual-port alternatives.
Everyday users largely praise the drive's durability, waterproof capability, and convenient retractable design, especially for travel and outdoor scenarios. The dominant criticism centers on the over-hyped speed specifications, with many noting actual transfer rates are much lower and that the device must be dried after water exposure before reuse.