ASM3242 is a Universal Serial Bus xHCI host controller that bridges PCI Express to USB3.2 20Gbps Supports backward compatibility with legacy USB functions and devices, compatible with USB Attach SCSI Protocol version 1.0, and supports debugport function of USB3.2 port ASM3242 also supports Multiple IN function, making full use of the available bandwidth of USB3.2 Gen2 x2 bus to achieve full utilization of 20Gbps data rate ASM3242 supports one USB3.2 20Gbps port and implements trusted high-speed bandwidth through PCI Express Gen3x4 Applications of ASM3242 include motherboards, desktop computers, notebook computers, workstations, servers, add-on cards, embedded platforms based on PCI Express Name:Expansion Card System requirements: Win 7/ Win 8/ Win 8.1/ Server2012/ Win10 32 or 64 bit, Linux, 1 available PCI-Express x4 / x8 / x16 slot Colour:Black Material:PCB Package Contents: 1 x Expansion Card Kit 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.