4-Pin IDE to SATA serial port power cable, SATA HDD power cable, D type 4-Pin to SATA serial port power cable; D type 4-pin power cable transfer into SATA power cable
Application: Put D type 4-pin power plug transfer into SATA power plug, so computer power supply with no SATA power plug can provide power supply for SATA devices.
Common SATA devices with SATA HDD, SATA CD-ROM, etc.