Cable Matters (3 Pack) 15 Pin SATA Power Y-Splitter Cable 8 Inches Y-SPLITTER SATA CABLE powers two Serial ATA HDD, SSD, optical drives, DVD burners, and PCI cards to a single connection on a computer power supply; Snug-fitting drive SATA connector and channel guides on the power supply connector provide a secure connection that wont accidentally disconnect UPGRADE COST SAVER SATA power cable spares the expense of upgrading an existing power supply to connect a new SATA drive; Cost-effective 3-Pack provides spare SATA extension power cables for new installations or repairs; Keep a spare in your IT toolkit or at the test bench DIY or IT installers both appreciate the convenience of sharing a PSU connection when installing new internal components like a DVD burner; 8 inch cable harness (not including connectors) provides sufficient length for internal cable management in most configurations HEAVY DUTY SPLITTER with 2 SATA 15 pin female connectors and 1 SATA 15 pin male is constructed with flexible 18 AWG conductors for reliable performance when connecting two SATA hard drives to a power supply; Supports 3.3V, 5V, and 12V power voltages between SATA I, II, III drives and power supply connections without any degradation of performance COMPATIBLE with popular SATA equipped devices such as: Apricorn Velocity Solo x2 Extreme Performance SSD Upgrade Kit, Asus 24x DVD-RW Serial-ATA Internal OEM Optical Drive, Crucial MX100 256GB SATA 2.5-Inch Internal Solid State Drive, Inateck PCI-E to USB 3.0 5-Port PCI Express Card, Inateck Superspeed 4 Ports PCI-E to USB 3.0 Expansion Card, Inateck Superspeed 5 Ports PCI-E to USB 3.0 Expansion Card, Inateck Superspeed 7 Ports PCI-E to USB 3.0 Expansion Card