Seagate ST120HM001, ST120HM000, ST240HM001 Serial ATA Sata Interface, Sata Connector Plug Pinout

4.0SERIAL ATA (SATA) INTERFACE

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification.

4.1HOT-PLUG COMPATIBILITY

Seagate 600 SSD drives incorporate connectors which enable you to hot plug these drives in accordance with the Serial ATA II: Extension to Serial ATA 1.0a specification. This specification can be downloaded from www.serialata.org.

4.2SERIAL ATA DEVICE PLUG CONNECTOR PIN DEFINITIONS

Table 6 summarizes the 2.5” drive Signal and Power SATA Plug.

Table 6 2.5” SATA Connector Plug Pinout

Segment	Pin	Function	Definition
	S1	GND	Ground
	S2	A+	Differential Signal Pair (Host to Drive)
	S3	A-
Signal
	S4	GND	Ground
	S5	B-	Differential Signal Pair (Drive to Host)
	S6	B+
	S7	GND	Ground
	Key and	spacing separate signal and power segments
	P1	V33	Unused [2]
	P2	V33
	P3	V33
	P4	GND
			Ground [1]
	P5	GND
	P6	GND
	P7	V5
Power	P8	V5	5V power to Drive
	P9	V5
	P10	Ground	Ground
	P11	LED Signal	Activity LED: Driven low to light
	P12	Ground	Ground [1]
	P13	V12	Unused [3]
	P14	V12
	P15	V12

Notes:

[1]Ground pins 4 and 12 mate first on SATA backplane connectors.

[2]The three V33 pins are unused but connected together on the drive. They can be used for a drive-in-place detection.

[3]The three V12 pins are unused but connected together on the drive. They can be used for a drive-in-place detection.

SEAGATE 600 SSD PRODUCT MANUAL, REV. A 20