This cable Extension full respect the standard of USB 2.0 .
At the Extension of the cable, there are a digital regeneration of the USB 2.0 signal, giving the capability to connect any USB device at full speed of over 5 meters.
We recommend using it with if a long distance is required.
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,