SanDisk Ultra Dual Drive m3.0 128GB Black
Score: 76/100
Amazon Basics USB Flash Drive 128 GB
Score: 73/100Rankings
SanDisk's 128 GB Ultra Dual Drive provides fast up to 150 MB/s read speeds and dual micro-USB/USB-3.0 connectors for seamless Android-to-PC transfers. The slower write speed and need for OTG-compatible devices are trade-offs. Ideal for Android photographers needing quick off-load of media.
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.
| Attribute | | |
|---|---|---|
128 GBbest | 128 GBbest | |
150 MB/sbest | 130 MB/s | |
— | 30 MB/sbest | |
| ↓ lower better | 5.2 gbest | 9.1 g |
5 yearsbest | 1 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(1) | ||
Read Speed (MB/s) | 150 MB/s | 130 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.1 Gen 1 |
Interface Type | Micro-USB & USB 3.0 | USB-A |
Build & Design(2) | ||
Weight (g) | 5.2 g | 9.1 g |
Dimensions (L×W×H) (mm) | 30.2×25.4×12.4 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 outlets such as Adorama and B&H focus on the drive's fast 150 MB/s read performance and its dual-connector OTG design, noting that it fills a niche for legacy micro-USB Android devices while offering reliable cross-platform compatibility. However, the scarcity of in-depth reviews leaves some uncertainty about durability and real-world write speeds.
Everyday users generally praise the convenience of moving large media files between Android phones and computers without extra adapters, and they value the Memory Zone app for automated backups. Recurring concerns revolve around slower write speeds, the necessity of an OTG-capable device, and the lack of clear durability information.
“Super-fast transfers (up to 150 MB/s, faster than USB 2.0 for movies/photos).”
“Frees Android storage via OTG and app.”
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.
