Asus PRIME Z490-P Manual page 33

18. 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.
The add-on Thunderbolt I/O card and Thunderbolt cables are purchased separately.
PRIME Z490-P
TB_HEADER
PIN 1
1-21