This USB cable was selected for its high quality, robustness and full respect the standard of USB 2.0.
To reduce the EMI, the cable is internally shielded and connected to metal part the both connector and has been a ferrite chokes to prevent radio frequency EMI/FMI interference.
This cable is recommended to connect the Theremino Master to the PC or HUB.
This quality cable reduces the frame re-transmission allowing the Theremino Master to communicate at the maximum speed possible with the HAL.
You can found one short explanation of the USB on Wikipedia here.
USB cable A B pinout.
Ferrite chokes for EMI/FMI reduction inserted on the cable,