The PYO4SATA SATA power splitter cable (1-to-4) features a SATA male power connector that connects to a single computer power supply SATA connector, and breaks out into four SATA female power connectors. The SATA power splitter cable overcomes the limit of the number of SATA drives that can be installed in the system, based on available PSU power connections, and eliminates the cost of having to upgrade the power supply to accommodate additional SATA drives. Offers maximum system expandability without having to upgrade a computer power supply for the sake of SATA (power) connections. Easy to use and install. Backed by StarTech.com lifetime warranty. Power up to 4 SATA drives from a single Serial ATA power supply connection.