Welcome to the store! 1. Widely Compatible: This PCIE to USB 3.0 expansion card is backward compatible with USB1.1/2.0, adapting to a variety of USB devices. 2. 8A Power Supply: Equipped with 4 independent power management chips, this USB 3.0 expansion card requires no external power supply, ensuring each USB port has an exclusive 2A power supply. 3. Fast Heat Dissipation: This PCIE to USB 3.0 adapter card uses a premium heatsink for better heat dissipation and higher stability. 4. Stable Power Supply: Each interface is equipped with an independent voltage stabilizing capacitor to ensure a stable power supply for each interface. It can withstand high temperatures of 250 degrees. 5. High Safety: This PCIE to USB 3.0 expansion card uses independent safety fuses that can instantly shut off the power supply if an external USB device has a short circuit or overcurrent. Once the fault is resolved, it automatically returns to normal. Item Type: PCIE to USB 3.0 Expansion Card Material: Circuit Board Master Chip: NEC720201 Bus Interface: PCIE X1 (compatible with x1, X4, X8, X16) Extended Interface: USB3.0 x 4 Working Environment: Minus 50℃ to 70℃ Compatible Systems: For Xp, for Win7, for Win8, for Win 8.1, for Win10, for Linux, etc. 1 x PCIE to USB 3.0 Expansion Card 2 x Screw 1 x Screwdriver 1 x CD Driver Your satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!