Not recognized by my iPad or iPhone on iOS 14.4+. It worked via USB on my Dell PC running Windows 10. I tried the Files app and the XDisk app on the manufacturer's advice, but that didn't fix the problem. The SD card (on mine) comes in upside down with the opposite entry of the device, which is counterintuitive. I'm going to try something similar as I wanted it to work for my SD card for my trail cameras.
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