Serial ATA [SATA] pinout. The Serial ATA [SATA] bus is the serial version of the IDE [ATA] spec. SATA uses a 4 conductor cable with two differential pairs [Tx/Rx], plus an additional three grounds pins and a separate power pin. Data runs at 150MBps [1.5GHz] using 8B/10B encoding and 250mV signal swings, with a maximum bus length of 1 meter . Later enhancements move the data transfer speed to; 300MBps [3.0Gbps], then 600MBps [6.0Gbps] Free service manuals.

Connector pinout: Serial ATA [SATA]

The Serial ATA [SATA] bus is the serial version of the IDE [ATA] spec. SATA uses a 4 conductor cable with two differential pairs [Tx/Rx], plus an additional three grounds pins and a separate power pin. Data runs at 150MBps [1.5GHz] using 8B/10B encoding and 250mV signal swings, with a maximum bus length of 1 meter . Later enhancements move the data transfer speed to; 300MBps [3.0Gbps], then 600MBps [6.0Gbps]

7 pin Serial ATA motheboard internal connector at the motheboard

pin	name	direction	description	color
1	Gnd		Ground
2	A+		Transmit +
3	A-		Transmit -
4	Gnd		Ground
5	B+		Receive -
6	B-		Receive +
7	Gnd		Ground