Check the listing for details. USB 3.0 PCI-e Expansion Card 7Port, RIITOP PCI-e x1 to USB 3.0 HUB Adapter 5Gbps. Condition: New. Listed at 29.95 USD. Hardware Requirement:1x Available PCI-e x1/x4/x8/x16 Slot on Motherboard; No power required. USB 3.0 PCI-e Expansion Card 7Port, RIITOP PCI-e x1 to USB 3.0 HUB Adapter 5Gbps (No Power Need) Specifications:7 Port PCIe USB 3.0 card 5Gbps.USB 3.0 pcie card.7 port usb 3.0 expansion card for desktop pc computer PCI-e 1x slot.Hi Speed 5Gpbs Transfer Speed.NEC Chipset, more stable and compatible than others.No need power supply, easy to use. Features:Conforms To PCI Express standard version 2.0.Meets Universal Serial Bus 3.0 standard.USB 3.0 interface Transmission rate could reach 5Gbps, downward compatible with USB 2.0 / 1.1.A USB device to be connected simultaneously 7tlg.USB interface could provide 5V2A power supply to the external device.With two power module, not need extra power supply.Supports Linux / Windows XP / 7/8 / 8.1 / 10 and 32 bit or 64 bit WHQL certified driver. 2* NEC Chipset:Includes two NEC Chipset on board. Support PCI-e 1x or above:Compliant with PCI-e 1x (or above) slot. Package Contents:1x RIITOP 7 Port USB3.0 PCI Express Card.1x Driver CD.Screws.