Extend Cable Length: Overcome the length limits of USB cables with this Plug & Play adapter No Extra Power Required: This USB RJ45 Extension Adapter is powered by USB port,no external power source is required Function: The rj45 extender allows you to connect the USB device to your computer at a distance up to 150 feet Wide Application: It is ideal for use with USB cameras, printers, web cams, keyboard/mouse extensions and any other USB devices Cord Compatibility: It is suitable for Cat5/RJ45/Cat6 patch cord