1. With the popularity of USB3.0, you can insert this adapter card on the motherboard with PCI-E slot and install the driver to expand 7 USB3.0 ports! It can satisfy you to copy data with 7 USB3.0 devices 2. This product is a desktop PCI-E expansion card. It needs to have a free PCI-E slot on the motherboard before it can be installed and used. It is also necessary to make sure that the slot is not blocked by the graphics card. Otherwise, it cannot be installed and used on the PCI slot. , Do not insert it into the PCI slot. Features: 1. No external power supply design, using two 6A high-power DC-DC to ensure USB power supply 2. The expansion card uses 10 high-performance solid capacitors, which greatly ensures the stability of the USB power supply. 3. Because this card has 7 ports on the rear, it does not support small chassis. 4. Each USB port uses a self-recovery insurance 5. Compliant with PCI-Express Specification Version 2.0 6. Compliant with USB3.0 SuperSpeed Specification Version 1.0 7. Compliant with xHCI specification version 1.0 8. Backward compatible with USB2.0, USB1.1, USB1.0 9. Transmission rate: 5000480121.5Mbps 10. USB power output: up to 5V 1.5A (increased current type) 11. Support USB hot plug function Parameter: 1. Output interface: 7 ports USB3.2 GEN1 19PIN 2. Main control chip: RENESAS D720201+720210 3. Interface rate: 5Gbps 4. Support slot: PCI-E 1X 5. PCB color: black 6. Support system: WINXPWIN781011LINUX