The Infinity ErgoDox uses a regular micro b cable not a micro b to micro b. You connect the Type A to the computer, then the micro b to whichever hand you want, then the other cable type a goes in to the type a port on the side plugged in to the computer, and the micro b gets plugged in to the slave side not connected to the computer. Or if you want to you can connect both hands individually to the computer. Either way you still need 2 Type A to usb 3 micro b cables.
