Review on UGREEN USB Card Reader USB 3.0 Hub with 3-Port SD TF MS M2 Card Adapter, Phone Stand Dock Combo for iMac, MacBook Pro, Air, Retina, Mac Mini, Windows, Surface Pro, IdeaPad, PC, Laptop, Tablet by David Cronin

Does exactly what is written. I use the USB ports not only for the flash drive, but also for the wired mouse and laptop fan/base. I haven't had any compatibility issues and it recognizes everything I've used. Before buying, I read several reviews about people losing data. It may not be related to the card reader. Maybe you pushed the memory card too far into the slot? I've never had media that suddenly lost files just by plugging it into a USB port. If you rely solely on it to read or stream footage of a junior's baseball game as he moves into the big leagues or your company's financial portfolio, you might be shaking your head and spending more money on a better solution. This is the average. Card reader/hub by speed. If you're a photographer broadcasting a 128GB photo shoot, grab a coffee while you wait. If you transfer files from one computer to another, or just need extra ports and need to put your phone somewhere other than your desk, then this thing is for you.