Power your Internal SATA hard drive from an LP4 / Molex connector on your Power Supply. The SATA18POW SATA Data & Power Cable features a combination 22-pin SATA receptacle data & power connector as well as an Molex (LP4) power connector & SATA receptacle data connector, allowing you to create a conventional Serial ATA data connection to a computer while powering the drive through an LP4 connection to the computer power supply.