SanDisk Ultra Dual Drive Go 128GB Black
Score: 84/100
Vansuny USB Flash Drive 512GB
Score: 79/100Rankings
The SanDisk Ultra Dual Drive Go 128 GB combines USB-A and USB-C connectors in a swivel design, providing up to 400 MB/s read speeds and lightweight portability. Write speeds are not disclosed and the weight specification varies, and it lacks extensive bundled software. It excels for users who move files between modern mobile devices and legacy computers.
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 | | |
|---|---|---|
128 GB | 512 GBbest | |
400 MB/s | 1,013.42 MB/sbest | |
— | 963.46 MB/sbest | |
| ↓ lower better | 5.1 gbest | — |
5 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 512 GB |
Performance(1) | ||
Read Speed (MB/s) | 400 MB/s | 1013.42 MB/s |
Connectivity(2) | ||
USB Version | USB 3.2 Gen 1 | USB 3.2 Gen 2 |
Interface | USB Type-A, USB Type-C | USB Type-A + USB Type-C (OTG) |
General(1) | ||
OS Compatibility | Android, iOS, Windows 7+, macOS 10.9+, smartphones, tablets with USB Type-C | Windows 7/8/10/XP/2000/ME/NT, Linux, Mac OS |
Build & Design(1) | ||
Dimensions (L×W×H) (mm) | 44.1×12.1×8.6 mm mm | 79.7×21.2×8.5 mm mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers describe the Ultra Dual Drive Go as a well-designed, ultra-light flash drive that combines a sleek swivel form factor with fast 400 MB/s read performance. They note its large 128 GB capacity removes the need for multiple smaller drives and applaud its broad compatibility across Android, iOS, Windows, and macOS platforms. The dual USB-A/USB-C interface is repeatedly highlighted as a key advantage for mixed-device environments.
Everyday users, though not quoted directly, consistently mention the drive's portability and the convenience of having both USB-A and USB-C connectors in one tiny device. The keyring hole and swivel protection receive positive nods, while the lack of published write-speed numbers and occasional confusion over the exact weight are minor points of uncertainty.
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.
