Fast! I'm running this on the USB-C port (Thunderbolt 3) of my 2017 i7 iMac and it's exactly twice as fast as my 3 San Disk 900's that only work correctly on USC 3 on the same machine. On this Atom machine, CI transferred 141 GB via USB in 4.5 minutes, and many, many of those files were small image files optimized for downloading from the Internet (150 KB on average). The San Disk 900 (2TB) took almost 11 minutes to transfer the same files to the same computer and drive (2TB SSD). Exactly twice as fast on my machine, under identical conditions, on the same machine, on the same hard drive. One catch (as with all USB-C cables): the cable is very short. The drive doesn't even reach the desktop when plugged into the iMac connector. But the device is so light that it doesn't matter. Works great. By the way, I'm not slandering SanDisk as I have 3 of their 900 drives. And I love her; They just don't work with my iMac's USB-C port. I think I'm getting about 50MB per second with this configuration. Doesn't work properly. But via USB 3 it works fine.
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