Vansuny USB Flash Drive 512GB
Score: 79/100
Lexar D40E
Score: 78/100Rankings
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.
Lexar's D40E 256 GB drive combines a dual-connector swivel metal housing with 256-bit AES encryption and strong sequential read performance. Write speeds can be inconsistent and the bulkier design reduces pocket-friendliness. Suited for photographers and videographers who value security and durability.
| Attribute | | |
|---|---|---|
512 GBbest | 256 GB | |
1,013.42 MB/sbest | 183 MB/s | |
963.46 MB/sbest | 45.8 MB/s | |
| ↓ lower better | — | 26 gbest |
— | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 512 GB | 256 GB |
Performance(2) | ||
Read Speed (MB/s) | 1013.42 MB/s | 183 MB/s |
Write Speed (MB/s) | 963.46 MB/s | 45.8 MB/s |
Connectivity(2) | ||
USB Version | USB 3.2 Gen 2 | USB 3.2 Gen 1 |
Interface | USB Type-A + USB Type-C (OTG) | USB Type-A, USB Type-C |
Build & Design(2) | ||
Dimensions (L×W×H) (mm) | 79.7×21.2×8.5 mm mm | 0.6693x0.4724x2.7559 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.
“Convenient swivel for no-cap loss and quick large-file moves.”
“Slower-than-expected writes for videos/documents and occasional compatibility hiccups on older devices.”
Professional reviewers commend the Lexar D40E for its dual-connector convenience, sturdy metal swivel construction, and solid sequential read performance that meets the needs of photographers and videographers. However, they criticize its weak random write speeds and occasional inability to consistently hit the advertised 100 MB/s read rate, noting that the bulkier swivel mechanism makes it less sleek than competing models.
Everyday users generally like the plug-and-play ease, large 256 GB capacity, and rugged swivel design, calling it a handy on-the-go solution. Recurring complaints focus on slower-than-advertised write speeds and occasional compatibility issues with older devices.
