Extends a USB-A connection by an additional 20 metres. If the power supply via USB-A is insufficient, an additional DC port is built in to connect an optional AC adapter. This cable can be used as a data cable and a charging cable. This 20 m Active Extension Cable Pro can bridge up to 40 m in combination with systems with ref. nos.: 43157 and 43159. The first segment on the computer must be ref. no. 43158 or 43229 Up to 2 of these active extensions can be daisy-chained between the USB host and device The cable to be extended can be up to max. 2 metres long The type A female connector has a special locking design to prevent inadvertent disconnection of other extension modules The special connector is only suitable for the connection of USB cables or slim USB devices If USB devices with high power requirements or when multiple devices are to be connected, a separate USB power cable can be connected (ref. no. 73107) Plug & Play (no additional drivers required) Ports: 1 x USB Type-A male to 1 x USB Type-A female Includes: USB Type A male - DC male cable (2.5 / 0.7 mm to connection optional power supply)