
SanDisk Ultra Dual Drive m3.0 128GB Black
Score: 76/100
Samsung BAR Plus
Score: 87/100Rankings

The Samsung BAR Plus 256 GB is a metal USB-A flash drive offering up to 400 MB/s read speeds and rugged 5-Proof protection. Its write speed tops out at about 62 MB/s and some spec dimensions vary. Ideal for photographers and travelers needing fast reads and durability.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GB | 256 GBbest | |
150 MB/s | 400 MB/sbest | |
— | 62 MB/sbest | |
| ↓ lower better | 5.2 gbest | 9.6 g |
5 yearsbest | 5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 256 GB |
Performance(1) | ||
Read Speed (MB/s) | 150 MB/s | 400 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 | 9.6 g |
Dimensions (L×W×H) (mm) | 30.2×25.4×12.4 mm mm | 11.75×15.59×40.26 mm |
Compatibility(1) | ||
OS Compatibility | Windows, macOS | Windows, macOS, Linux |

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.”

“lightning-fast speeds”




Professional reviewers commend the BAR Plus for its modern metal design, fast read performance up to 400 MB/s, and comprehensive 5-Proof durability, while noting the write speed of roughly 62 MB/s falls short of top competitors like the SanDisk Extreme Pro.
Everyday users consistently praise the drive's rapid read speeds, stylish metal build, compact form factor and ample 256 GB capacity, with few complaints aside from minor spec inconsistencies.