I bought this based on reviews but was very disappointed. Maybe the device I received is just a bad device, but I've never received more than 45MB of transfer since I bought it last September. I am getting 80-90MB transfer on my Anker 3 in 1 3.0 card reader connected to the same ports. I have tried many different cards (CF, SD and Micro SD) from different manufacturers with rated speeds of 90M or higher. I've also tried this on multiple computers (Windows and Mac) via USB 3.0 and 3.1 with different cables. For now I'm just going to stick with the Anker device and see what Prograde is doing with this device.
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