Samsung BAR Plus USB 3.1 Flash Drive 128GB
- Memory Storage Capacity: 128 GB
- Hardware Interface: USB, USB 3.2 Gen 1
- Hardware Connectivity Technology: USB Type A
- Number of Packs: 1
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A durable, fast 128GB flash drive from a major storage brand, worth buying for anyone who has broken a plastic flash drive and wants one that survives a wash cycle or a drop.
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ASIN: B07BPG9YX9Model: MUF-128BE4/AMCategory: USB Flash Drives
Overview
A metal-bodied USB 3.1 flash drive built for durability, with 128GB of storage and read speeds up to 300 MB/s for moving large photo, video and file libraries between machines.
The BAR Plus trades the flimsy plastic shell most flash drives use for a solid metal casing rated against water, shock, temperature swings, magnets and X-ray exposure, with a keyring loop so it stays attached to keys instead of getting lost in a bag. Samsung backs it with a 5-year limited warranty, longer than most drives at this capacity.
- 128GB capacity
- Up to 300 MB/s read speed
- Metal, water and shock resistant body
- 5-year limited warranty
Who it's for
Fits anyone who carries files between a work and home computer, needs a rugged backup drive for a bag or car, or wants a keychain drive that survives being dropped or washed. Not built for anyone who wants USB-C for a phone or tablet without an adapter.
Pros and cons
- Metal casing rated for water, shock and temperature extremes
- Fast enough to move a 3GB 4K video in about 10 seconds on USB 3.1
- Keyring loop keeps it from getting misplaced
- 5-year limited warranty
- USB-A only, no USB-C version in this listing
- Full 300 MB/s speed needs a USB 3.1 port to reach
Performance notes
The 300 MB/s USB 3.1 read speed matters most when copying large 4K video files or bulk photo libraries onto a modern USB 3.0 or 3.1 port; older USB 2.0 ports will bottleneck it well below that figure. The metal housing has no moving parts, so most of its durability claims come down to sealed construction rather than added electronics.
Where it stands among usb flash drives
- #9 most-searched brand and model of the 29 usb flash drives lines we track (by search demand, not sales).
From the specs of the 93 usb flash drives we list; not a test result.
Specifications
| Brand | Samsung |
|---|---|
| Model | MUF-128BE4/AM |
| Dimensions & fit | |
| Item Weight | 0 ounces |
| Item Dimensions D x W x H | 0.6 × 0.6 × 0.5 inches |
| Capacity & performance | |
| Memory Storage Capacity | 128 GBhigher than 53% of 88 usb flash drives |
| Read Speed | 400 megabytes_per_second |
| Write Speed | 200 megabytes_per_second |
| Construction & materials | |
| Color | Gray |
| Compatibility & installation | |
| Hardware Interface | USB, USB 3.2 Gen 1 |
| Hardware Connectivity Technology | USB Type A |
| Connectivity Technology | USB |
| Compatible Devices | Laptop, Tablet, Television |
| Included components | |
| Number of Packs | 1 |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 5 years |
| Other details | |
| Flash Memory Type | NAND |
| Number of Items | 1 |
| Mfr Part Number | MUF-128BE4/AM |
| Builtin media | USB 3.0 Flash Drive |
| Additional Features | Dust Proof, Temperature Proof, Water Resistant |
Closest rivals on specs
Frequently asked questions
Does the Samsung BAR Plus work with USB 2.0 ports?
Yes, it is backward compatible, but transfer speeds will drop to USB 2.0 levels on an older port.
Is the BAR Plus 128GB actually waterproof?
Samsung rates the metal body against water, shock, temperature extremes, magnets and X-ray exposure, per its published specs.
Does it come with a warranty?
It carries a 5-year limited warranty from Samsung.