Comply with PCI-Express specification version 2.0 Comply with USB3.0 SuperSpeed specification version 1.0 Comply with xHCI specification version 1.0 Main control chip: Renesas uPD720201 chipset Maximum transmission rate is up to 5Gbps, which is much higher than 480Mb/s of USB2.0, up to 10 times; Backward compatible with USB2.0, USB1.1, USB1.0 Transmission rate: 5000/480/12/1.5Mbps USB power output: up to 5V 1.5A Support USB hot plug function Support for Windows XP/2003/Vista/win7/win8/10/11/2003, etc. Product use: With the popularity of USB3.2, you can plug this adapter card into the motherboard with PCI-E slot and install the driver to expand 2 USB and 2 TYPE-C interfaces, which support positive and negative insertion! You can use multiple USB devices to copy data! Hardware requirements: A motherboard that supports PCI-E This product is a desktop PCI-E expansion card. It requires an empty PCI-E slot on the motherboard to install and use. You must also make sure that the slot is not blocked by the graphics card. It cannot be installed and used on the PCI slot. Do not insert it into the PCI slot. Note:Due to different production batches, the printing silk screen/appearance is different, which does not affect the use. Colour:Black Material:PCB+Metal Package Contents: 1 * USB PCI-E Expansion Card Adapter 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.