Supports all motherboard USB 3.0/3.1(19PIN) ports. USB 3.0 interface is compatible with USB 2.0 devices. Not compatible with USB 2.0 IDC 9-pin socket. USB3.0 Internal 19PIN to USB3.1/3.2 Internal TYPE-C20PIN Adapter. Internal 20PIN (Key A) interface support (Gen2-Gen1), USB3.0 USB2.0 and USB1.1 devices This adapter can be used for motherboard USB 3.0 20-pin sockets as well as PCI expansion cards. The Type E adapter is designed for TYPE-E interface to simplify the connection between motherboard and TYPE-C cable. Please unplug the power cord and wait 10 seconds before installation. Vertical transmission, small size, no interference with other multi-layer circuit boards, integrated differential signal optimization technology, stable signal, strong anti-interference ability, this adapter is the perfect solution for USB 3.1 connectors using Type-C or Type-A.