ASROCK EPYC3451D4I2-2T User Manual page 28

OCuLink X4 Connector
(OCU1)
(see p.6, No. 10)
OCU1 pin definition
Pin Defeinition
A1 GND
A2 GND
A3 SATA_C_RXP0
A4 SATA_C_RXN0
A5 GND
A6 SATA_C_RXP1
A7 SATA_C_RXN1
A8 GND
A9 NC
A10 PCIE_WAKE_N
A11 GND
A12 CLK_100M_OCU1_R_DP
A13 CLK_100M_OCU1_R_DN
A14 GND
A15 SATA_C_RXP2
A16 SATA_C_RXN2
A17 GND
A18 SATA_C_RXP3
A19 SATA_C_RXN3
A20 GND
A21 NC
EPYC3451D4I2-2T / EPYC3351D4I2-2T
Please connect a PCIE SSD to
the connector.
O CU1
Pin Defeinition
B1 OCU1_PE_HP_ALERT_L
B2 GND
B3 SATA_C_TXP0
B4 SATA_C_TXN0
B5 GND
B6 SATA_C_TXP1
B7 SATA_C_TXN1
B8 GND
B9 OCU1_PE_HP_SCL
B10 OCU1_PE_HP_SDA
B11 GND
B12 OCU1_PERST_BUF_N
B13 OCU1_B13_PRSNT_N
B14 GND
B15 SATA_C_TXP2
B16 SATA_C_TXN2
B17 GND
B18 SATA_C_TXP3
B19 SATA_C_TXN3
B20 GND
B21 GND
21