MSI PRO B660M-A WIFI DDR4 User Manual - Page 25
JTBT1: Thunderbolt Add-on Card Connector, JCOM1: Serial Port Connector, JDASH1: Tuning controller
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JTBT1: Thunderbolt Add-on Card Connector This connector allows you to connect the add-on Thunderbolt I/O card. Pin Signal Name Pin Signal Name 1 TBT_Force_PWR 2 TBT_S0IX_Entry_REQ 3 TBT_CIO_Plug_Event# 4 TBT_S0IX_Entry_ACK 2 16 5 SLP_S3#_TBT 6 TBT_PSON_Override_N 1 15 7 SLP_S5#_TBT 8 Net Name 9 Ground 10 SMBCLK_VSB 11 DG_PEWake 12 SMBDATA_VSB 13 TBT_RTD3_PWR_EN 14 Ground 15 TBT_Card_DET_R# 16 PD_IRQ# JCOM1: Serial Port Connector This connector allows you to connect the optional serial port with bracket. 2 10 1 9 Pin Signal Name Pin Signal Name 1 DCD 2 SIN 3 SOUT 4 DTR 5 Ground 6 DSR 7 RTS 8 CTS 9 RI 10 No Pin JDASH1: Tuning controller Connector This connector is used to connect an optional Tuning Controller module. 26 15 Pin Signal Name Pin Signal Name 1 No Pin 2 NC 3 MCU_SMB_SCL_M 4 MCU_SMB_SDA_M 5 VCC5 6 Ground 24