Kontron COMe Ref. Carrier T2 - Manual (Page 34)

COM Express™ miniBaseboard Type 2 / Connectors and Features
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5.4 Serial ATA
The COM Express™ Type 2 pin-out specification defines 4 SATA ports. The miniBaseboard provides four 7-pin SATA data
connectors as standard 1.27mm Pitch Serial ATA High Speed Header. On COM Express™ miniBaseboard Type 2 SATA
connectors with Locking Latch are used.
SATA Pin Signal
1 Ground
2 Transmit +
3 Transmit -
4 Ground
5 Receive -
6 Receive +
7 Ground
Connector SATA Port
J3 SATA #0
J5 SATA #1
J33 SATA #2
J34 SATA #3