Asus PRIME X299-Deluxe Series User Manual page 41

9. 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.
10. U.2 connector (U.2)
This motherboard comes with a U.2 connector which supports PCIe 3.0 x4 NVM
Express storage.
The U.2 connector shares bandwidth with the M.2_2 socket . Adjust the BIOS settings to
use U.2 devices.
ASUS PRIME X299-DELUXE Series
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