The interface is USB3.0 19PIN TYPE-E 20PIN Adapter card - The interface is USB3.0 19PIN TYPE-E 20PIN, the connection is stable.Mounted to the PCI bracket, helps you easily connect the devices with type C interface.^ The type-C reversible design simplifies the connection and allows you to plug in any way without worrying about it being upside-down.^ Compatible with both USB 3.0 or USB 2.0 devices when both motherboard USB 3.0 & USB 2.0 headers are connected. Support systems - WINXP/WIN7/WIN8/WIN10 32/64BIT/MAC/Linux.^ Supports data transfer to and from all your USB-C devices at speeds of up to 10Gbps, and delivers 100W power supply.^ It's easy to hook up and install and its just an extension/port so no need to install drivers.