This Adapter is used for powering Three Serial ATA Hard Drives via one standard 4-Pin Molex Input Plug. This cable is 12 inches long in two segments, one segment has one 15-pin straight entry Power plug at the end of the 12inch cable run, the other cable has two 15-pin right Angle (Bottom entry) SATA power plugs 6 inches apart. Converts the power supply's Standard 4-pin Molex to Three 15-Pin Sata Plugs connector.