Read speed is claimed to be "up to 300 MB/s". I assume that "MB/s" means "MegaBits/sec" and "up to" means that is a burst speed (i.e. it may be attained for a few seconds at the beginning of a transfer, but will fall back to a lower number for a sustained transfer) And it says nothing about *write* speed. Does anyone have specs for *sustained* read and write speeds? Thanks!

Speedout test results show 238mps reads and 97mps writes. That's on a 2/3 full 2 year hold Samsung Fit drive 256MB used on a full time daily basis as a storage drive on a laptop.

Does someone have any specs on the idle & active heat? (Does it run hot?)

I don't know how you would measure temps on a thumb drive. For whatever it is worth, my 256GB Fit Thumb drive is a champ. It has never shown any signs that it is running hot and never feels hot to the touch. My Fit drive runs fast, but more slowly that the rated speed and it slows down as it reads and copies very large directories and large files. Nevertheless. I like it and may purchase another. Today's $40 price looks like a bargain to me.

Is there a memory device to upgrade memory of an iPad MC990LL/A ?

Maybe but there is a memory device with (Lighting) to transfer Photos, Videos only.

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Samsung 256GB FIT Plus USB 3.1 Flash Drive, Speed Up to 300MB/s (MUF-256AB/AM)

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Capacity: 256GB

64GB
128GB
256GB

Redefine everyday file transfers with speeds up to 300MB/s
Exceptionally compact USB flash drive for an unnoticeable, seamless fit, designed with a key ring to prevent loss
USB 3.1 flash drive with backwards compatibility (USB 3.0, USB 2.0)

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Best Seller Ranking	#50 in USB Flash Drives

Model
Brand	SAMSUNG
Series	FIT Plus
Model	MUF-256AB/AM

Details
USB Specification	USB 3.1
USB Connectors	Type A
Color	Gunmetal Gray
Capacity	256GB
Read Speed	up to 300MB/s

Features
Features	Plug in and stay Designed to plug in and stay. Expand your storage with the FIT Plus, a compact flash drive, seamless and unobtrusive. Instant storage for your laptops, tablets, TV's, car audio systems, gaming consoles, and more. Store more. Leave it in. Extra storage in a seamlessly fitting design. Leave it in your devices with reduced risks of accidental bumps or removal. Enough capacity for your favorite tunes, irreplaceable photos/videos, important work documents, and personal files. Quick. Convenient. Save time, add space. Quick and convenient read speeds up to 300MB/s with the latest USB 3.1 standard to ensure transferring data never slows you down. Send a 3GB 4K UHD video file from your FIT Plus to your PC in just 10 seconds. Tough & Trusted Files stay secure, anywhere you go. Samsung's leadership in flash memory makes the FIT 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.

Dimensions & Weight
Dimensions	0.29" x 0.74" x 0.93"
Weight	0.01 lb.

Additional Information
Date First Available	June 17, 2025

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Samsung 256GB FIT Plus USB 3.1 Flash Drive, Speed Up to 300MB/s (MUF-256AB/AM)

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Item#: 9SIA47JKG69411

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Samsung 256GB FIT Plus USB 3.1 Flash Drive, Speed Up to 300MB/s (MUF-256AB/AM)

Learn more about the SAMSUNG MUF-256AB/AM

Customer Reviews of the SAMSUNG MUF-256AB/AM

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Warranty, Returns, And Additional Information

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