Data and Power interface definitions for SATA drives

SATA devices are becoming more and more popular, including the stat hard disk and optical drive are basically SATA interface, the previous old power output interface is generally 20 pin for the motherboard plus 4-pin power supply for the hard drive that is, the previous computer power supply to the hard drive without the design of 15-pin SATA interface power supply, now SATA power supply is 15-pin, then we have no way to use the old power supply to drive the new equipment now.

The answer is yes, there is a transfer cable to convert the 4pin to the hard drive interface

This is the transfer cable, the black is the hard drive interface

SATA Data Interface (7-pin) power connector (15-pin) definition detailed

SATA is the Serial ATA (Serial Advanced Technology Attachment), also known as Serial ATA, which is a hard drive interface specification jointly presented by Intel, IBM, Dell, APT, Maxtor and Seagate.
The focus of this article is on SATA data and power line interface PIN definitions, with the example of connecting a SATA hard drive.

One, SATA data interface and Power interface

The figure above is a schematic of the data cable, power cord, and hard drive interface

The figure above is the data cable, power cable and hard disk interface physical diagram

The figure above is the data interface (7-pin) Close-up of the SATA data cable (7-pin) corresponding to the hard drive

The figure above is a close-up of the SATAs data cable (female) (the interface on the hard disk becomes the male)

Second, the Data interface (7-pin) definition

Three, power connector (15-pin) definition