SAMSUNG BAR Plus 3.1 USB Flash Drive
Bottom line: The SAMSUNG BAR Plus 3.1 USB Flash Drive ($39.99 on Amazon as of 2026-10-21 08:15 UTC): Read speeds up to 300MB/s move a 3GB 4K file in about 10 seconds; main trade-off: samsung rates read speed only; write speed is not published.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Read speeds up to 300MB/s move a 3GB 4K file in about 10 seconds
- ✓ Metal body is waterproof, shock-proof, magnet-proof, and X-ray-proof
- ✓ 5-year limited warranty, long for a flash drive at this size
- ✓ Built-in keyring loop keeps the drive on your keys, not loose in a bag
Cons
- ✗ Samsung rates read speed only; write speed is not published
- ✗ 300MB/s is a peak figure and varies by capacity per Samsung's own note
- ✗ USB-A only, so newer USB-C laptops need an adapter or hub
- ✗ Metal casing conducts heat and gets warm during long transfers
Manufacturer description
Move files fast with the Samsung BAR Plus USB 3.1 flash drive, a 128GB pocket drive built to survive the way you actually carry storage. Read speeds reach up to 300MB/s, so a 3GB 4K UHD video moves from the drive to your PC in roughly 10 seconds instead of the minute-plus a tired USB 2.0 stick would take. The rugged metal casing does double duty: it looks sharp on a keychain and it protects your data, with a body rated waterproof, shock-proof, temperature-proof, magnet-proof, and X-ray-proof. An integrated keyring loop means the drive rides on your keys instead of disappearing into a bag…
SpecPicks Verdict
SpecPicks scored SAMSUNG BAR Plus 3.1 USB Flash Drive using a rating × review-volume × price-fit model applied to published specs and reviews across the PC & gaming hardware category. Samsung's PC & gaming hardware lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for PC & gaming hardware of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
How fast is the Samsung BAR Plus 128GB?
Samsung rates read speeds at up to 300MB/s over USB 3.1, which moves a 3GB 4K UHD video file to a PC in about 10 seconds. Samsung notes speeds may vary by capacity, and it does not publish a write-speed figure for this drive.
Is the Samsung BAR Plus waterproof?
Samsung lists the metal body as waterproof, shock-proof, temperature-proof, magnet-proof, and X-ray-proof. Samsung specifies an operating temperature range of 0 to 60 degrees Celsius. Check the product listing for the exact ingress rating and test conditions.
Does the BAR Plus work with USB-C laptops?
The BAR Plus uses a USB-A connector, so a USB-C-only laptop needs a USB-C adapter or a hub with a USB-A port. On machines with a standard USB-A port it plugs in directly, and USB 3.1 is backward compatible with older USB ports at their slower speeds.
What warranty comes with the Samsung BAR Plus?
Samsung backs the BAR Plus with a 5-year limited warranty. Terms and the claim process vary by region, so check the product listing or Samsung's support site for the warranty details that apply where you buy.
Is 128GB enough storage for photos and video?
128GB holds a large photo library or several hours of 4K footage, which is why this capacity is the common pick for transferring project files between machines. Samsung sells the BAR Plus in other capacities, and it notes rated speeds vary by capacity.
Key Features
- MOVE FILES IN A FLASH: Fast and convenient read speeds up to 300 MB/s* with the latest USB 3.1 standard give you more time to work, play, watch, and create; Send a 3GB 4K UHD video file from your Bar Plus to your PC in just 10 seconds**
- RUGGED REFINEMENT: As strong as it is stylish; The sturdy metal body keeps your data safe and intact, and the integrated keyring prevents accidental misplacement or loss; The Bar Plus is the ideal combination of stunning design and worry-free durability
- TOUGH & TRUSTED: The Bar Plus a trustworthy drive to store your valuable data; It works through it all with a waterproof, shock-proof, temperature-proof, magnet-proof, and X-ray-proof body, all backed by a 5-year limited warranty***
- WORLD'S #1 FLASH MEMORY BRAND: Experience the performance and reliability from the world's #1 brand for flash memory since 2003;**** All firmware & components, including Samsung's world-renowned DRAM & NAND, are produced in-house
Full Specifications
| Brand | Samsung |
|---|---|
| Color | Gray |
| Model Name | BAR Plus |
| Read Speed | 400 megabytes_per_second |
| Unit Count | 1 Count |
| Write Speed | 200 megabytes_per_second |
| Connectivity | USB |
| Model Number | MUF-128BE4/AM |
| Compatibility | PC |
| Built-In Media | USB 3.0 Flash Drive |
| Item Type Name | Samsung MUF-128BE4/AM 128GB BAR Plus (Grey-Metal) USB 3.0 Flash Drive |
| Mfr Part Number | MUF-128BE4/AM |
| Special Feature | Dust Proof, Temperature Proof, Water Resistant |
| Flash Memory Type | CompactFlash |
| Compatible Devices | Laptop, Tablet, Television |
| Hardware Interface | USB, USB 3.2 Gen 1 |
| Additional Features | Dust Proof, Temperature Proof, Water Resistant |
| Warranty Description | 5 Year Warranty |
| Connectivity Technology | USB |
| Memory Storage Capacity | 128 GB |
| Full listing title | SAMSUNG BAR Plus 3.1 USB Flash Drive, 128GB, 400MB/s, Rugged Metal Casing, Storage Expansion for Photos, Videos, Music, Files, MUF-128BE4/AM, Titan Grey |
Ready to buy?
SAMSUNG BAR Plus 3.1 USB Flash Drive, 128GB, 400MB/s, Rugged Metal Casing, Storage Expansion for Photos, Videos, Music, Files, MUF-128BE4/AM, Titan Grey is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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