Monoprice 108799 SATA 8-Inch 15-Pin Female with Latch to Molex 4-Pin Male Power Adapter The Serial ATA standard provides for the adoption of a new 15-pin drive power connector replacing the ubiquitous 4-pin Molex connector However existing system cases and power supplies may have an insufficient number of SATA power connectors while still retaining the older Molex connectors Make sure your drive does not require 3. 3 VDC before purchasing this adapter cable