The PCI-E card is equipped with a bandwidth of 10 Gbit / s, which ensures fast data transfer and the real speed of USB 3.2 for the individual port. This expansion card is a necessity for external drives and perfect for file backups, video editing and data recovery (Note: the actual transfer speed can be limited by the connected device. Multi-Port PCIe to USB 3.2 Gen 2 Card: This card provides three USB Type-A ports and two USB Type-C ports from a PCIe x 4 slot Wide compatibility: The expansion card is compatible with Windows 7, 8, 10 and Mac OS 10.8.2 and higher. Win 10, Mac OS and Linux do not require a driver. A driver must be installed under Windows 7 Add a USB 3.2 Gen 5 port (3X USB-A -2X USB-C) to your PC or older desktop computer with PCIe equipment. Here is an affordable solution to adding 10Gbps connectivity to your computer Easy installation: the product is powered directly from the PCIe slot on the motherboard. No external power supply required and installation is worry-free Colour:black Material:Metal+PCB A single interface can reach a maximum of 10gbps, and any of these 4 interfaces can be connected with the last interface to reach 20gbps! Package Contents: 2 x 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.