Product name: 2-port USB 3.1 PCIE Expansion Card Bus Type: PCI Express X1 3.0, Compatible PCIe x4/x8/x16 Slot. Good Compatibility: Compatible with Windows 7/8/8.1/10/11, Linux OS. PCI-E to USB3.1: Expand your computer with two more ports USB3.1 Gen 2: The PCI-E card is equipped with 10Gbps bandwidth, which ensures fast data transmission, real speed of USB3.1 for individual port. Plug and play and hot swapping capability Stable and reliable ASMEDIA Chipset ASM3142 The 15-pin SATA power connector supplies power to USB-C enabled devices, and supports up to 5V 900mAh output on each USB 3.1 port. Specs: 1. Supports 10Gbps PCI-E bus with full duplex channel. 2. Built-in over current protection and short circuit protection on each USB port. 3. Support SuperSpeedand (10 Gbps), SuperSpeed (5 Gbps), HighSpeed (480 Mbps), and FullSpeed (12 Mbps) (Note: The actual transmission speed is limited by the setting of the device connected.) 4. Support USB 3.1 devices,backwards compatible with USB 3.0, 2.0 and 1.1 5. Support High-speed PCI-E 3.0 specification 6. Support PCIe 1.0, PCIe 2.0, or PCIe 3.0 motherboard, Compliant with PCI Express Base 3.0 Specification, Compliant with Universal Serial Bus 3.1 Specification Colour:Black Material:ABS Package Contents: 1x PCI Express X1 to 2 Port Type-C Expansion Card Only the above package content, other products are not included. Note: Light reflection 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.