Power a Serial ATA hard drive from a conventional LP4 power supply connectionThis 6in 4 Pin LP4to SATA power adapter cable features one 4 Pin LP4 male connector and one female SATA power connector, allowing you to power a Serial ATA hard drive from a conventional LP4 connection, eliminating the need to upgrade the computer power supply for compatibility with the SATA hard drive.This LP4 to SATA adapter is backed by StarTech.com's Lifetime Warranty.The StarTech.com Advantage- Compatible with both 2.5” and 3.5” Serial ATA Hard Drives allows the use of newer hard drives with older power supplies- Backed by a StarTech.com lifetime warranty and free technical support