
Samsung USB-C Flash Drive 512GB Gray
Score: 81/100
Vansuny USB Flash Drive 512GB
Score: 79/100Rankings

The Samsung Type-C 512 GB flash drive delivers fast 400 MB/s reads in an ultra-compact, rugged metal-cased form factor. Its drawbacks are a modest 110 MB/s write speed and a USB-C-only interface that may need an adapter for older devices. Best suited for mobile professionals who prioritize portability and durability over sustained write performance.

The Vansuny 512 GB Type-C flash drive delivers near-1 GB/s sequential performance and a rugged zinc-alloy body with dual USB-A/C connectors. Its random-access speeds and occasional USB-C throttling are drawbacks. Ideal for creators moving large media files on the go.
| Attribute | ![]() | ![]() |
|---|---|---|
512 GBbest | 512 GBbest | |
400 MB/s | 1,013.42 MB/sbest | |
110 MB/s | 963.46 MB/sbest | |
| ↓ lower better | 3.4 gbest | — |
5 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(2) | ||
Read Speed (MB/s) | 400 MB/s | 1013.42 MB/s |
Write Speed (MB/s) | 110 MB/s | 963.46 MB/s |
Connectivity(2) | ||
USB Version | USB 3.2 Gen 1 | USB 3.2 Gen 2 |
Interface | Type-C | USB Type-A + USB Type-C (OTG) |
Build & Design(1) | ||
Dimensions (L×W×H) (mm) | 2.54x16.0x33.78 mm | 79.7×21.2×8.5 mm mm |


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

Retailer editors such as B&H Photo and Staples praise the drive's multi-proof construction and its advertised 400 MB/s read performance on USB-C 3.2 Gen 1, emphasizing fast and efficient data transfer for high-capacity needs. However, professional reviews are limited, leaving independent verification of real-world endurance and write performance scarce.
Everyday users consistently highlight the drive's high read speed, tiny form factor, and rugged, water- and shock-proof build as major positives for on-the-go use. The most common criticism revolves around the comparatively slow write speed and the absence of a protective cap, which some feel leaves the connector vulnerable.


Professional reviewers commend the Vansuny 512GB OTG drive for its near-advertised sequential performance, high AS SSD benchmark score, and robust zinc-alloy construction, but they point out inconsistent USB-C speeds and modest random 4K read rates, and note the lack of coverage from major tech publications.
Everyday users appreciate the fast large-file transfers, especially the ability to move a 4 GB movie to a phone in seconds, and value the plug-and-play experience across multiple platforms, though they report occasional port-speed differences and wish for more information on durability and heat.