Reference:
UE2120H
The UE2120H allows users to extend the distance between a computer and USB device(s) up to 12 meters via the active extender hub. USB signals transmitted through these cables maintain optimal signal integrity and meet USB 2.0 standards. Up to 4 extender cables (UE2120) and 1 Extender Hub (UE2120H) can be chained together, so that cable distance is increased by up to 60 meters. Supports any High-Speed (480Mb/s), full-speed (12 Mb/s) or low-speed (1.5 Mb/s) USB devices. 4 Downstream USB 2.0 ports.