Support and discussion for all of Akai’s modern standalone MPCs including the MPC X / X SE, MPC Live 1, 2 & 3, MPC One / One+, MPC Key 37/61.
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By Ill-Green Mon Oct 23, 2017 11:32 am
I have a Live and using Windows7. I transfer files using a 16GB SD card.

You might want to try and install the MPC's driver to your PC first before trying to transfer files because the blue USB cable will not work unless you install the driver and 2.0 software first. There are known issues with that blue USB cable, you must be experiencing one of them. Installing the drivers will help out tons.