Ata Cables; Sata Data Cable; Sata Power Cable - HP Compaq dc7100 DT Reference Manual

Serial and Parallel ATA Drive Guidelines and Features

4.2 ATA Cables

4.2.1 SATA Data Cable

The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive. As
shown in the table, each cable has 3 grounds, and 4 transmit/receive pins.
SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and
never bend it tighter than a 30 mm (1.18 in) radius.
Pin Number
P1
P2*
P3*
P4
P5**
P6**
P7
*P2 and P3 differential signal pair
**P5 and P6 differential signal pair

4.2.2 SATA Power Cable

Pin
P1
P2
P3
P4
P5
P6
P7
P8
4–2
Usage
Ground
A+
A-
Ground
B-
B+
Ground
Usage Notes
V3.3 3.3 V power
V3.3 3.3 V power
V3.3 3.3 V power
Ground
Ground
Ground
5 V power
V5
V5 5 V power
361288-003
Device Plug
Ground
Transmit data
Transmit data
Ground
Receive data
Receive data
Ground
Pin Usage
P9 V5
Ground
P10
P11 Reserved
P12 Ground
P13 V 12
P14 V12
P15 V12
Service Reference Guide, dc7100
Host Plug
Ground
Receive data
Receive data
Ground
Transmit data
Transmit data
Ground
Notes
5 V power
12 V power
12 V power
12 V power