ATX 4-Pin Molex IDE to Dual 15-Pin SATA Power Cable Adapter. Power your Serial ATA (SATA) device with this 4-Pin ATX (Male) to SATA power adapter cable. This power cable adapter converts a Molex 4-pin connector to 2 x 15-pin SATA power connectors for powering both 3.5inch and 2.5inch Serial ATA drives.