SanDisk Ultra Dual Drive Go 256GB Black
Score: 71/100
Amazon Basics USB Flash Drive 128 GB
Score: 73/100Rankings
A 128 GB USB 3.1 flash drive with a retractable connector and fast 130 MB/s read speed. Write speed is modest at 30 MB/s and usable space shrinks after formatting. Best suited for general consumers needing portable high-capacity storage.
The SanDisk Ultra Dual Drive Go 256 GB is a compact flash drive featuring dual USB-A and USB-C connectors and fast read speeds up to 150 MB/s. It lacks a disclosed write-speed rating and hardware encryption, which may limit its suitability for intensive data-write tasks. Ideal for users needing cross-platform file transfers on the go.
| Attribute | | |
|---|---|---|
256 GBbest | 128 GB | |
150 MB/sbest | 130 MB/s | |
— | 30 MB/sbest | |
| ↓ lower better | 3.7 gbest | 9.1 g |
5 yearsbest | 1 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 256 GB | 128 GB |
Performance(1) | ||
Read Speed (MB/s) | 150 MB/s | 130 MB/s |
Connectivity(2) | ||
USB Version | USB 3.2 Gen 1 | USB 3.1 Gen 1 |
Interface Type | USB 3.2 Gen 1 | USB-A |
Build & Design(2) | ||
Weight (g) | 3.70 g | 9.1 g |
Dimensions (L×W×H) (mm) | 44.45×12.19×8.64 mm mm | 56.9×20.1×13.5 mm mm |
General(1) | ||
Warranty (years) | 5 years | 1 years |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the drive's retractable connector and sleek black design, noting that the 130 MB/s read speed delivers fast transfers. However, they criticize the modest 30 MB/s write speed and the disclaimer that performance may vary, positioning the product as a solid everyday solution but not a high-performance option for power users.
Everyday users praise the reliability of the retractable mechanism, the convenient size, and the generous 128 GB capacity, often purchasing multiple units. Recurring concerns focus on the slower write speed and the reduction of usable space after formatting, with some noting inconsistent transfer speeds in real-world use.
