Product name: PCI-e to USB3.0+Type-C multi-port expansion card Interface type: PCI-E 1x Applicable models: conventional desktop computers (need to have an idle graphics card interface) Number of interfaces: USB3.0*3 Type-C interface*1 Use chip: FL110 No need for external power supply Support: WindowsXP/win7/win8/win8.1/win10 and other common systems According to the conditions: Available PCI-E 1x/4x/8x/16x graphics card slot Colour:black Material:Metal + PCB Size:12.7 x 6.6 x 1.5cm Package Contents: 2 x PCI-E 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. 3. Comply with USB 3.0 specification. Bus-powered mode, most peripheral devices do not need external power supply 2. Expanded 1 USB 3.0 Type C, 3 Type A downstream ports for standard desktop PC 5. The transmission rate is up to 5.0Gbps-10 times faster than USB2.0 · Plug and play and hot plug function. 4. Compatible with USB 2.0 and 1.1 specifications. 1. No need for additional power supply for normal identification and operation, optimized board plane structure, quick and easy installation, keeping the Pro case tidy-through quick and easy installation, this PCI Express card is expanded by four high-speed USB3 The Pro .0 interface provides a for connecting from Pro to USB 3.0 devices