SanDisk Ultra Flair 256GB
Score: 79/100
Vansuny USB Flash Drive 512GB
Score: 79/100Rankings
The SanDisk Ultra Flair 256 GB USB 3.0 flash drive delivers high read performance and a rugged metal case with a 5-year warranty. It lacks a USB-C interface and does not specify write speeds, which may affect some users. Best for users who need fast, reliable storage on devices with USB-A ports.
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 | | |
|---|---|---|
256 GB | 512 GBbest | |
150 MB/s | 1,013.42 MB/sbest | |
— | 963.46 MB/sbest | |
| ↓ lower better | 4.5 gbest | — |
5 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 256 GB | 512 GB |
Performance(1) | ||
Read Speed (MB/s) | 150 MB/s | 1013.42 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.2 Gen 2 |
Interface | USB Type-A | USB Type-A + USB Type-C (OTG) |
General(1) | ||
OS Compatibility | Windows, macOS | Windows 7/8/10/XP/2000/ME/NT, Linux, Mac OS |
Build & Design(2) | ||
Dimensions (L×W×H) (mm) | 42.93×12.95×7.11 mm mm | 79.7×21.2×8.5 mm mm |
Material | Metal | Zinc alloy |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Ultra Flair 256GB for its high read speed, rugged metal construction, and SecureAccess encryption, noting it handles 4K movie transfers in seconds.
Everyday users generally express satisfaction with the drive's speed, durability, and compactness, frequently highlighting the convenience of password protection.
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.
