Asus Expansion Card for Z170 & X99 Motherboards ThunderboltEX 3 Compatible with a variety of ASUS Z170 and X99 motherboards Enables up to 40 Gbps transfer speeds One Type-C port supports Thunderbolt 3, USB 3.1 and DisplayPort 1.2 Includes secondary USB 3.1 Type-A port Supports USB Power Delivery Specification for up to 36W charging. Please refer the User Manual before use.