Samsung Type-C USB Flash Drive 256GB
- 256 GB NAND storage
- USB Type-C connector, USB 3.2 Gen 1
- Up to 400 MB/s read, 300 MB/s write listed
- V30 video speed class
- Waterproof, shock, magnet and X-ray proof body
- 5 year manufacturer warranty
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A pocket-sized Type-C drive for moving large files between laptops, tablets and phones. It has only a Type-C plug, so older Type-A ports need an adapter the listing does not mention.
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ASIN: B09WB2NL8WModel: MUF-256DA/AMCategory: USB Flash Drives
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Sizes Available
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Overview
Plugging straight into a reversible Type-C port, this flash drive stores files on Samsung NAND and fits in a closed hand. A sealed body carries the connector, with no cap or cable to carry.
Quick transfers and a sealed body suit a backup that rides in a bag. The listing gives no detail on sustained write behavior and names no adapter for other connector types.
Who it's for
A traveler or student who shuttles big media folders among a laptop, a tablet and a phone with reversible ports. Someone with a desktop that has only the rectangular connector should look for a drive made for it.
Pros and cons
- Fast read speed for its class
- Body is waterproof and shock proof
- Five year manufacturer warranty
- Small enough for a pocket
- Type-C plug only, no Type-A end
- Write speed lower than read speed
- No carry cap or case listed
- Phone support limited to Type-C devices
Performance notes
Read speed tops out at the listed maximum when the host port supports the same USB generation, and slower ports reduce it. Write speed is lower than read speed, so copying a large video to the drive takes longer than copying it off. The listing's example moves a four gigabyte file in about fifteen seconds.
Specifications
| Brand | Samsung |
|---|---|
| Model | MUF-256DA/AM |
| Dimensions & fit | |
| Item weight | 3.4 g |
| Item Dimensions D x W x H | 0.32 x 1.33 x 0.63 inches (D x W x H) |
| Capacity & performance | |
| Memory Storage Capacity | 256 GBhigher than 75% of 88 usb flash drives |
| Read Speed | Up to 400 MB/s |
| Write Speed | 300 MB/s |
| Video speed class | V30 |
| Construction & materials | |
| Color | Blue |
| Compatibility & installation | |
| Hardware Interface | USB 3.2 Gen 1 |
| Hardware Connectivity Technology | USB Type-C |
| Compatible Devices | Laptop, tablet |
| Compatible Phone Models | Devices with reversible USB Type-C ports |
| Warranty & support | |
| Warranty Description | 5 year manufacturer |
| Other details | |
| Flash Memory Type | NAND |
Closest rivals on specs
Amazon Basics Retractable USB 3.1 Flash Drive 256GB- Item Weight 0.01 vs 0.02 pounds (-50%)
Aiibe USB 2.0 Flash Drive 128GB- Memory Storage Capacity 256 vs 128 GB (+100%)
SanDisk Ultra Dual Drive USB Type-C 128GB- Memory Storage Capacity 256 vs 128 GB (+100%)
- Item Weight 0.01 vs 0.02 pounds (-50%)
Frequently asked questions
Will the Samsung MUF-256DA work in a USB-A port?
The connector is USB Type-C. The listing calls it backward compatible with USB 3.0 and 2.0 speeds but does not list a Type-A adapter.
Does it work with phones?
The listing says it is compatible with devices that have reversible USB Type-C ports, including laptops, tablets, phones and cameras.
How much can the Samsung MUF-256DA store?
The seller copy lists room for 15,930 photos or a maximum of 3 hours of 4K video.
How long is the Samsung MUF-256DA warranty?
A 5 year limited manufacturer warranty is listed.