Some storage controllers may include SAS interface and NVMe (PCIe) interface by multiplexing the data and sidebands signals. The pinout follows the SFF-9402 specificatons.
The SFF-8643 interface is compliant with the SAS 3.0 specifications, supports 12Gb/s data transfer protocol and up to 4-ports (4 lanes) of SAS data.
Pin Number |
Pin Name |
Description |
---|---|---|
A1 | SB7 | Sideband 7 |
A2 | SB0 | Sideband 0 |
A3 | GND | |
A4 | Rx1+ | |
A5 | Rx1- | |
A6 | GND | |
A7 | Rx3+ | |
A8 | Rx3- | |
A9 | GND | |
B1 | SB3 GND | Sideband 3 ground |
B2 | SB1 | Sideband 1 |
B3 | GND | |
B4 | Rx0+ | |
B5 | Rx0- | |
B6 | GND | |
B7 | Rx2+ | |
B8 | Rx2- | |
B9 | GND | |
C1 | SB4 | Sideband 4 |
C2 | SB2 | Sideband 2 |
C3 | GND | |
C4 | Tx1+ | |
C5 | Tx1- | |
C6 | GND | |
C7 | Tx3+ | |
C8 | Tx3- | |
C9 | GND | |
D1 | SB5 | Sideband 5 |
D2 | SB6 | Sideband 6 |
D3 | GND | |
D4 | Tx0+ | |
D5 | Tx0- | |
D6 | GND | |
D7 | Tx2+ | |
D8 | Tx2- | |
D9 | GND |