I bought a self-powered 10-port USB hub with this set of 10 USB sticks. I needed to be able to use all of these drives simultaneously and in parallel. Within minutes of being plugged in, 3 drives had already failed with I/O errors. I was writing data to one drive at a time, so it's unlikely I used too much power for the USB hub. I disconnected and reconnected 3 hard drives. As expected, the drives were fine. I tried running benchmark tests on hard drives. Most drives had 2 Mbps stream I/O. Some of them were around 65k/s. The pair only had 16fps. But a simple attempt to write to discs turned some of them off again. UPDATE: (11/12/2019) I suspect these drives are mislabeled as 32GB when in fact they are only 4GB. The disk information that Windows and Linux see says 32GB, but when I try to write more than 4GB to it, they get I/O errors and fail. I was able to verify that all 10 of my drives had failed and decided to return them for a refund.
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