Intel H310 Technical Manual page 20

(4) SATA1/SATA2 (7-pin): SATA III Port connector
SATA1&SATA2 are high-speed SATAIII port that supports 6 GB/s transfer rate.
(5) SATAPWR (15-pin block): SATA power connector
SATAPWR
SATA1
SATA2
Pin1
SATA Power Connector
15
Pin No. Definition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
Pin NO. Definition
Pin 1 NC
Pin 2 NC
Pin 3 NC
Pin 4 GND
Pin 5 GND
Pin 6 GND
Pin 7 +5V
Pin 8 +5V
Pin 9 +5V
Pin 10 GND
Pin 11 NC
Pin 12 GND
Pin 13 +12V
Pin 14 +12V
Pin 15 +12V