This product gives you USB3.0 4 ports Hub, where your PC existingly does not have any USB3.0 port. It comes with a complete kit to help you to achieve 4 X USB3.0 port and this kit consists of, 1) PCI-E to USB3.0 20pin port (to be slotted in the PCIe slot of your PC motherboard) 2) Cable of USB3.0 20pin port to USB3.0 HUB (Connect directly if your PC is with USB3.0 2Opin port or item 1 3) USB3.0 4Ports hub in a stylish aluminium casing. Features: Aluminum alloy material, cool metal texture Complete kit to ease you for the exact solution for a 4 X USB 3.0 ports: Up to 5.0Gb/s, backward with USB 2.0 & 1.1 Powered by DC 4 Pin supply each port up to 900 mA Additional power port design, just in case you need stronger current for more huge consumption devices System support: Windows XP/Vista/Windows 7(32&64bit). Bulit-in over current protection can protect the devices effectively Hot-swap Led indication Product Size: 101.38 X 50.47 X 24.92 mm Package Content: 1x PCI-E to USB 3.0 20pin male port 1x USB3.0 4Ports HUB 1x USB3.0 20pin to 20pin F/F cable 1x Retaining Screw 1x Driver CD Note : a) Please make sure that your motherboard has spare PCI-E slot. b) Photo attached is for reference only, it may be slightly varied in items of colour, shape from the actual item delivered from time to time