Front 19PIN to 3.1 C TYPE-E adapter 20-pin to 19-pin expansion card .-The interface is a usb3.0 19pin TYPE-E 20pin adapter, and the connection is stable. The reversible c-shaped design simplifies the connection, allowing you to connect anyway without worrying about it hanging upside down. When both USB 3.0 and USB 2.0 motherboard connectors are connected at the same time, it is compatible with USB 3.0 or USB 2.0 devices. Support system-winxp / win7 / win8 / win10 32 / 64bit / / linux. It supports data transmission between all USB-C devices, with a transmission speed of up to 10gbps, and provides 100w of power. It is easy to connect and install, and it is just an extension/port, so no driver installation is required. Material:plastic colour:Black Package Contents: 1 x TYPE-E adapter 20 to 19 pin expansion card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.