SanDisk Ultra Dual Drive m3.0 128GB Black
Score: 76/100
SamData USB Flash Drives
Score: 57/100Rankings
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.
The SamData 32 GB USB flash drive offers a budget-friendly 2-pack with a capless design and LED indicator, making it easy for occasional file transfers. However, its USB 2.0 interface and 8 MB/s write speed limit performance for larger files. Best suited for students and light users who prioritize cost over speed.
| Attribute | | |
|---|---|---|
128 GBbest | 32 GB | |
150 MB/sbest | — | |
— | 8 MB/sbest | |
| ↓ lower better | 5.2 gbest | 12 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) | 128 GB | 32 GB |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 2.0 |
Interface Type | Micro-USB & USB 3.0 | USB 2.0 |
Build & Design(2) | ||
Weight (g) | 5.2 g | 12 g |
Dimensions (L×W×H) (mm) | 30.2×25.4×12.4 mm mm | 58×19×10 mm mm |
General(1) | ||
Warranty (years) | 5 years | 1 years |
Compatibility(1) | ||
OS Compatibility | Windows, macOS | Windows, Linux, macOS |
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.”
“transfer status at a glance”
Professional reviewers acknowledge that the SamData drives deliver functional storage at a very low price point, but they consistently point out that the USB 2.0 interface and 8 MB/s write speed lag behind modern USB 3.x alternatives, making the drives best suited for occasional, low-volume transfers rather than heavy workloads.
Everyday users praise the affordability, the handy LED status light, and the color-coded two-pack for organizing files, while the most common criticism revolves around the slower transfer speeds inherent to USB 2.0, which some find inconvenient for larger files.
