Fantastic, noticeably faster than usb 3.0 r/w
Roughly 100MB/s reads copying the entire drive, writes are twice as fast as SanDisk 3.0 which are the next best thing for the size and quality (40+ and 25MB/s respectively). Excellent drive for regular large file transfers if saving a few mins is worthwhile to you.
(edit: added image) -> also, note that speeds in the image are relevent for practical use cases. i'm transferring a bunch of xxxMB to x,xxxMB videos and usually you don't transfer 200gigs at a time, so this is the first few gigs of a large transfer. the first few video files that transfer to the usb use up the embedded SDRAM and finish writing after it tells the operating system that it's done and ready for me. sdram modules are super quick but expensive so much flash drives have very limited sdram.
as expected, speeds drop but only to 90MBps (megaBYTES, not megaBITS). compare that to any other flash drive in this price range which isn't 2.5" large and you'll quickly notice the tranfer rates for others plummet within a gigabyte of data transferred, but this drive keeps writing at >70-80MBps which is amazing! not 25-30 megabytes per second like i'm used to but sustainably over 3x that from even usb flash drives marketed as 3.1usb for file transfers. they're not lying, persay, because they'll transfer at that speed to their sdram for the first 800MB, but slow to 20-30 in short order.
i'm transferring 100 gigs sustained at 80+ megabytes with a usb controller on its own pcie lanes via adapter card (so it's not going through the motherboard's chipset). this is as fast as this drive gets, and for the price difference it's well worth it for anyone regularly using this drive to transfer large files. these are real figures on linux from 5 mins ago Ubuntu LTS 21 and 22. I am very, very impressed with this thing the more i benchmark it.
Read speed | 400 Megabytes Per Second |
---|---|
Connectivity technology | USB |
Colour | Memory Card/UFD |
Flash memory type | CompactFlash |
Manufacturer | Samsung Electronics |
UPC | 887276549453 |
Compatible phone models | Palm |
Standing screen display size | 7 Inches |
Item model number | MUF-256DA/AM |
Product Dimensions | 3.37 x 1.59 x 0.82 cm; 3.4 g |
Item dimensions L x W x H | 34 x 16 x 8 millimeters |