
Vansuny USB Flash Drive 128GB
Score: 71/100
Teamgroup C162 256GB
Score: 65/100Rankings

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.

TeamGroup's C162 256 GB drive combines a rugged zinc-alloy metal body with waterproof, dustproof and shockproof protection, plus a lifetime warranty. Its real-world sequential speeds are modest, falling well short of the advertised 140 MB/s. Ideal for travelers and users prioritizing durability over high performance.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GB | 256 GBbest | |
400 MB/sbest | 38.37 MB/s | |
240 MB/sbest | 27.92 MB/s | |
| ↓ lower better | 9 g | 3.4 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 256 GB |
Performance(2) | ||
Read Speed (MB/s) | 400 MB/s | 38.37 MB/s |
Write Speed (MB/s) | 240 MB/s | 27.92 MB/s |
Connectivity(2) | ||
USB Version | USB 3.1 Gen 2 | USB 3.2 Gen1 |
Interface | USB-A | USB Type-A |
General(1) | ||
OS Compatibility | Windows, macOS, Linux | Windows XP or later, Mac OS 10.6 or later, Linux 2.6 or later |
Build & Design(3) | ||
Weight (g) | 9 g | 3.4 g |
Dimensions (L×W×H) (mm) | 2.54×12.19×48.26 mm | 24 x 12.2 x 7 mm |
Material | Aluminum alloy, ABS | Zinc Alloy |
Power(1) | ||
Operating Temperature (°C) | 0-70 °C | 0°C to 70°C °C |

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

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.


Professional reviewers acknowledge the C162's robust metal construction and lifetime warranty, but they criticize its severely limited real-world performance, especially the gap between advertised and measured speeds and the negligible 4K throughput, making it unsuitable for demanding transfer tasks.
Consumer feedback is sparse, but the available data suggests users are likely to be disappointed by the slow actual transfer rates despite the drive's advertised speed claims, while appreciating its compact, rugged design.