PCIE to USB 3.1 Expansion Card Self Powered 2 Ports 1xUSB C 1xUSB A 10Gbps USB 3.1 Gen 2 PCIE Adapter Card Item Type: PCIE B 3.1 Expansion Card Material: PCB Total Interface: Pcie X4 (can Be Used for Pcie X8 X16 Graphics Card Interface) Expansion Interface: 1xUSB C, 1xUSB C Main Control Model: ASM3142 Transmission Rate: 10Gbps Support Chassis: Full Support for Large and Small Chassis Features: 1.Allows Users to Add 2x Usb 3.1 Gen2 (1x Type A and 1x Type C) Superspeed 10gbps Ports to Desktop Computers for Video, Photo or File Transfer and Real Time Data Storage. 2.Built in Febsmart Technology for Self Powered Hdd ssd Enclosures, VR Sensors and Other High Power Data Devices, It Also Provides Stable and Fast Connections for Common Usb Devices, Including Webcams, Mice, Keyboards, Smartphones, KVM Switches , Usb Hub, Etc. 3.Adding a Usb 3.1 Gen2 Port to a Desktop Computer is a Low Cost and Effective Method. the Added 2x on the Usb Port Does Not Take Up the Motherboard Usb Main Lan Speed, Just Extra Bandwidth Through the Pci Express X4 on the Computer or Server.