SATA splitter cable powers up to four Serial ATA HDD, SSD, optical drives, DVD burners, and PCI-E cards from a single connection to computer power supplies; Snug-fitting drive SATA power cable clicks into place on your power supply to provide a secure connection that prevents accidental disconnection Upgrade cost saver SATA power splitter cable spares the expense of upgrading an existing power supply to connect new SATA drives; Cost-effective 2-pack provides a spare power cable for new installations or repairs; Keep a spare in your IT toolkit or at the test bench DIY or pro installers both appreciate the convenience of sharing a PSU connection when installing new internal components like a DVD burner; 18 inch cable harness has 4 SATA drive receptacles spaced at 4.5 inch intervals; Provides sufficient length for internal cable management to minimize airflow impact in most configurations Hdd power cables have 4-SATA 15 pin female receptacles and 1-SATA 15 pin male plug at one end; C