Maximum extension up to 130' (40 m) USB device support full-speed (12 Mbps) USB 1.1 device USB hub support can support up to two externally powered USB hubs connected in series with the Cat 5 USB extender Each hub reduces the maximum extension by 40' (12 m). Maximum power output 175 mA when the LEX is supplied with 500 mA (USB bus powered) FCC CE