Onboard design 2 sets of high-power power supplies, using DC chips, integrated high-quality inductors and large-capacity filter capacitors; each set of power supplies supplies power to 2 US, ports to that the US has enough power for external devices. Support USB3.2 GEN2 10G TYPE-C and front TYPE-E interface adopts professional 10G high-speed switching chip to stable high-speed transmission of TYPC-C equipment. The stability of the main control power supply chip main controller mainly depends on the efficiency of the main control power supply chip. The high efficiency and stable PWM synchronous step-down DC chip of a big is used to escort the main controller. The port protection chip uses a 2.2A protection chip for each port. When the short-circuit current of the external device is too large, the protection chip will be in a disconnected state to protect the device and the host. PCI-E X4 gold finger high gold plating: strong oxidation resistance, good conductivity, and abrasion resistance. Product name: USB3A port+TYPE-C+ front TYPE-E+19/20PIN Input interface: PCI-E X4 (X2) compatible x8/X16 compatible with USB1.1; USB2.0; USB3.0; USB3.1; USB3.2 5G; Comply with PCI EXPRESS 3.0 basic specifications; Compliant with Extensible Host Controller Interface (XHCI) specification Colour:black Material:ABS Package Contents: 1 * Expansion Card Only the above package content, other products are not included. Note: Light 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.