Asus ROG Strix B550-A Gaming AM4 ATX Motherboard - Manual (Page 32)

1-20 Chapter 1: Product Introduction
Chapter 1
16. Thunderbolt header
The Thunderbolt header allows you to connect an add-on Thunderbolt I/O card
that supports Intel’s Thunderbolt Technology, allowing you to connect up to six
Thunderbolt-enabled devices and a DisplayPort-enabled display in a daisy-chain
configuration.
PIN 1
FORCE_PWR
GND
SLP_S3# SLP_S5#
GND
RTD3_SW
I2C_SCL I2C_SDA I2C_IRQ# RTD3_POWER_EN S_SLP_S0#_IDLE PERST_N WAKE#
TB_HEADER
The add-on Thunderbolt I/O card and Thunderbolt cables are purchased separately.
15. Thermal Sensor header
The Thermal Sensor header allows you to connect a sensor to monitor the
temperature of the devices and the critical components inside the motherboard.
Connect the thermal sensor and place it on the device or the motherboard’s
component to detect its temperature.
PIN 1
T_SENSOR
SENSOR IN
GND
The thermal sensor is purchased separately.