Tests showed 999 MB/s with my NVMe case, which is about all you can get from a USB port (theoretical top speed would be 1250 MB/s , but good luck). It seems to work pretty well to connect multiple devices, although there was some strange behavior when I had 2 NVMe enclosures connected. It may have been an isolated case where I tried to clone an OS drive, but who knows. Overall it works as advertised. Update June 16, 2021: Random failures with drives attached forced me to re-rate this to 1 star. No matter what external drive I plug in, it randomly disconnects when accessed under any load.
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