Runs on Windows 10 Home; Reformatted the device to exFAT. Seems solid enough to use on a keychain BUT its writing performance is SLOW SLOW SLOW. Copying 138MB PDF files takes 11 seconds, half the speed of my old HP USB 2.0 Flash Key, but much longer than my SanDisk 3.0 Ultra's 3.5 seconds. Sandisk CZ48 128GB USB 3.0 Flash Drive - SDCZ48-128G-U46 A 468MB video file is copied in 17.7 seconds compared to 8.6 seconds on the SanDisk 3.0 Ultra, slightly slower than the 5 seconds of my Sandisk 3.1 Extreme GO. 64MB. SanDisk Extreme CZ80 64GB USB 3.0 Flash Drive - SDCZ80-064G-GAM46 Gets very hot even during long writes. Wouldn't recommend this for users who value their time.
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