Tripp Lite's P947-06N-2P15 allows an additional SATA hard drive to be added to a computer / server when no additional power supply wiring harness connectors are available. Simply unplug a SATA hard drive power cable from the existing SATA hard drive and connect the P947-06N-2P15 to the power cable's 15-pin female end. Reconnect the old and new drives with the two new female 15-pin ends.