SEAGATE 600 SSD PRODUCT MANUAL, REV. A 21 Table 7 summarizes the 1.8” drive Signal and Power SATA Plug.Notes:
[1] Ground pins 3 and 4 mate first on micro SATA backplane connectors
[2] The two V33 pins are unused but connected together on the drive. They can be used for a drive-in-place detection.
Table 7 1.8” SATA Connector Plug Pinout
Segment Pin Function Definition
Signal
S1 GND Ground
S2 A+ Differential Signal Pair (Host to Drive)
S3 A-
S4 GND Ground
S5 B- Differential Signal Pair (Drive to Host)
S6 B+
S7 GND Ground
Spacing separates signal and power segments
Power
P1 V33 Unused [2]
P2 V33
P3 GND Ground [1]
P4 GND
P5 V55V power to Drive
P6 V5
P7 LED Signal Activity LED: Driven low to light
Key Key Keyway
P8 Optional Reserved for Seagate use.
Leave unconnected.
P9 Optional