Connect power eSATA devices to the eSATA and USB ports on your computer. This eSATA and USB A Male to Power eSATA Cable provides a 3 ft connection between an external drive enclosure equipped with a power eSATA port and the eSATA and USB port on a PC/notebook, providing both power (through USB) and data (through SATA) using a single cable. The 3 ft eSATA and USB A Male to Power eSATA Male cable is expertly designed and constructed of only top quality materials.