USB extender is made by two single unit,Transmitter and Recevier, transmission by CAT5E/CAT6 UTP cable(same line orders with ethernet). No need extra install software. Using CAT5E/6 cable can make USB2.0 transmission distance up to 60m (196ft).The max distance between transmitter and recevier can reach 200 meters when using CAT6 UTP cable for low-speed USB devices(such as keyboards, mouse,etc). It is a ideal product in extend keyboad,mouse,writing pad and game controller,etc.USB devices. Interface description: Transmitter: USB Type B Input + RJ45 Output Recevier: RJ45 Input + DC5V/1A power supply port + 4 x USB2.0 Hub Output Package includes: 1 x USB 2.0 Extender Transmitter 1 x USB 2.0 Extender Receiver 1 x USB Type A to Type B Cable 1 x DC5V/1A Power Supply Adapter