This USB2.0 Cable offer additional power link from Laptop USB Type A port to Devices with DC connection 2.5mm (such as HDD Enclosure， Expresscards， USB card reader and etc...). Features: Brand by Akiba-accessories Connector A : 1 - Type A USB2.0 Male Connector B : 1 - DC Jack Male Outer Diameter 2.5mm (for additional power) Length : 0.5m Color : Black (Note : Photo attached is for reference only， it may be slightly varied in items of colour， shape from the actual item delivered from time to time)