Asus X99-E WS/USB 3.1 Manual page 51

13. 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.
14. M.2 socket 3
This socket allows you to install an M.2 (NGFF) SSD module.
ASUS X99-E WS/USB 3.1
E13611_X99-E_WS_USB31_UM_V4.indb 35
The add-on Thunderbolt I/O card and Thunderbolt cables are purchased separately.
• This socket supports M Key and type 2260/2280 storage devices.
• This socket supports PCIe mode only.
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