1、20PIN USB3.0 PORTS: The USB3.0 PCIE internal card allows you to extend 4 USB 3.0 ports to your desktop PC via two internal 20pin USB3.0 ports. 2、4 INDEPENDENT FUSE: Each port is equipped with an independent protection fuse. When the external USB device is short circuited and the current is too high, the power can be cut off instantly to protect the peripherals and computer from damage. 3、4 SOLIDLY STATE CAPACITORS: Each interface is equipped with independent voltage regulator capacitors to ensure smoothly power supply to each interface. And the capacitors with solidly state chips can withstand high temperatures up to 250°C. 4、POWER SUPPLY MODULE: Each USB 3.0 interface is equipped with an independent power supply module, each interface has an exclusive 2A power supply and a total of 8A power supply. The inductor uses 12x12mm closed type super power inductor. 5、TRANSMISSION STABILITY: Thickened gold plated PCIE interface, contact transmission is more stable and less prone to data distortion, bending hardening treatment of the fixed baffle for fixing the expansion card to the chassis. Item Type: PCI Express to Dual 20pin USB 3.0 Cards Material: PCB Input Interface: PCI Express X1 Output Connector: 2x20PIN Front Panel Connector (USB3.0) Power Supply: No Additional Power Supply Required Transfer Speed: Up to 5Gbps Compatible Interface: PCIe x1 x4 x6 x8 x16 Slots Incompatible Interface: PCI Slots 1 x PCI Express to Dual 20pin USB 3.0 Cards