Asus TUF Z270 Mark 1 User Manual page 33

4. Thunderbolt header (5-pin TB_HEADER)
This connector is for the 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.
5. USB 2.0 connectors (10-1 pin USB1314; USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cable to these
connectors, then install the module to a slot opening at the back of the system chassis.
This USB connector complies with USB 2.0 specification that supports up to 480 Mb/s
connection speed.
DO NOT connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
ASUS TUF Z270 MARK 1 1-17