Be careful when ordering these flash drives. I have tested 2 out of 5 ordered Windows 7 devices and everything is fine. However, I ordered them to play music in my 2017 Subaru Forester - Harmon Kardon sound system. Neither one nor the other works. I can get the catalog but not the music. On Windows 7, when I first connected to download files, I saw a brief window that said "New device detected". I think for some reason these flash drives need a driver to work properly. Windows has this disk on board and can install it, but the firmware in my Subaru (or maybe other devices?) is lame. <<My analysis.
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