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Title: stay away from this thing
Review: I got this USB 2.0 card and tried with my card reader and mp3 player. It sees the drives but as soon as you want to copy file to the drive it gives write delay error and corrupt your storage device. I had to format my mp3 player and lost my data. It does not matter whether you do it with powered or not, the result is same. I would say stay away from this junk
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