The expansion card uses 10 high-performance solid capacitors, which greatly ensures the stability of the USB power supply. This product uses high-quality materials, is durable, has a long service life, and is firm and stable in use. Quick start, loading and file transfer. Low power consumption, quiet, reliable and durable. Compact and portable: being so mini and light-weight, this product does not take much space and can be easily taken . Because this card has 7 ports at the rear, it does not support small chassis. Output interface: 7 ports USB3.2 GEN1 Main control chip: RENESAS D720201and720210 Interface rate: 5Gbps Support slot: PCI-E 1X Support system: WINXP or WIN7 or 8 or 10 or 11 or LINUX Compliant with PCI-Express specification version 2.0 Compliant with USB3.0 SuperSpeed specification version 1.0 Compliant with xHCI specification version 1.0 Main control chip: Renesas uPD720201andD720210 chipset The maximum transmission rate is as high as 5Gbps, which is much higher than 480Mb or s of USB2.0, up to 10 times Backward compatible with USB2.0, USB1.1, USB1.0 Transmission rate: 5000 or 480 or 12 or 1.5Mbps USB power output: up to 5V 1.5A (increased current type) Support USB hot plug function Support Windows XP or 2003 or Vista or win7 or win8 or 2003 or 10 and above systems. Hardware Requirements: A motherboard that supports PCI-E This product is a desktop PCI-E expansion card. It needs to have a free PCI-E slot on the motherboard to install and use it. Make sure that the slot is not blocked by the graphics card. In addition, it cannot be installed and used on the PCI slot. Never plug it into a PCI slot. size: 120 x 98 x 75MM Material: PCB colour: black Package Contents: 1 x USB PCIE Adapter 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.