The USB extender is used to lengthen the distance between computer and USB devices by up to 50m. It consists of a transmitter (with USB cable with type A male, computer side) and a receiver (device side with integrated USB type A female). Connectionvia standard network cables of up to 50m length (Cat5 or higher). A USB mains adapter (5V DC regulated 0.5 A min., e.g. 178568) must be connected to the receiver's power supply when connecting USB devices with power requirements higher than 100 mA.