Out of power connectors? Our Y Power Splitters are the answer. Easily attach additional hard drives, cd-roms, cd-rws, etc.to your computer's power supply. These cables meet or exceed industry standards. Don't trust just any cable to power your devices. Please call if you need a custom length. - Connector: One 4-pin Male Socket to Two 4-pin Jacket Females. - Splits one 5-1/4 power connector into two 5-1/4 power connectors. - Designed for Hard Drives, CD-ROMs, CD-RWs, Tape Drives, Fans, etc.