StarTech.com 4x SATA Power Splitter Adapter Cable

Add three extra SATA power outlets to your Power Supply. 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.