Vansuny USB Flash Drive 512GB
Score: 79/100
Techkey USB Flash Drive 128GB
Score: 79/100Rankings
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.
The Techkey 128 GB MFi-certified flash drive offers versatile three-in-one connectivity and a rugged metal build, delivering fast USB 3.0 speeds. Its main drawbacks are the mandatory iOS app and the lack of detailed size/weight specs. Ideal for travelers and iOS users who need a durable, cross-platform backup solution.
| Attribute | | |
|---|---|---|
512 GBbest | 128 GB | |
1,013.42 MB/sbest | 80 MB/s | |
963.46 MB/sbest | 40 MB/s | |
— | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 512 GB | 128 GB |
Performance(2) | ||
Read Speed (MB/s) | 1013.42 MB/s | 80 MB/s |
Write Speed (MB/s) | 963.46 MB/s | 40 MB/s |
Connectivity(2) | ||
USB Version | USB 3.2 Gen 2 | USB 3.0 |
Interface | USB Type-A + USB Type-C (OTG) | USB 3.0, Lightning, USB-C |
General(1) | ||
OS Compatibility | Windows 7/8/10/XP/2000/ME/NT, Linux, Mac OS | iOS, Android, macOS, Windows |
Build & Design(2) | ||
Dimensions (L×W×H) (mm) | 79.7×21.2×8.5 mm mm | 3.94 x 0.03937 x 5.43 inches mm |
Material | Zinc alloy | Metal |
Products in the top-left offer the best value (high score, low price).
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.
“USB 3.0 speed is very fast on computers.”
“NWT, ideal for travel.”
Professional reviewers highlight the drive's very fast USB 3.0 performance and the convenience of having Lightning, USB-C and USB 3.0 ports in a single, rugged package, while noting that the mandatory BLANBOK+ app on iOS adds a setup step and that independent testing is limited.
Everyday users praise the drive for quick, one-click backups and seamless cross-platform file transfers, especially while traveling, and they value the durable metal build; no major complaints are repeatedly mentioned beyond the required app for iOS.
