1: Compliant with USB 3.0 specification. 2: with USB 2.0 & 1.1 specification. 3: Date transfer rates up to 5.0Gbps - 10x faster than USB2.0 4: Plug & play and hot swapping capability. 5: Bus-powered mode and no external required for of peripherals. No additional supply for normal recognition and operation needed anymore, optimized board plane architecture, fast and easy installation, keeps your Pro case tidy - With quick and easy installation, this PCI card expands your Pro by four high-speed USB3.0 interfaces, offers a for connecting to USB 3.0 devices from your Pro Extend with 1 USB 3.0 Type C, 3 Type A downstream ports for standard desktop PC Number:UP3100 Interface Type:PCI ,USB Type:Add On Cards color:Black Material:plastic Package Contents: 1 x PCI Expansion Card Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.