Feature: 1. 5 Ports: PCI expansion to USB adapter hub provides 4 external USB 2.0 ports and 1 shared internal port for independent transfers and high speed operation. 2. 480Mbps: USB 2.0 5 port expansion card supports transfer rates up to 480Mbps. 1.5Mbps (USB 1.0), 12Mbps (USB 1.1), 480Mbps (USB 2.0), backward compatible with USB 1.0,1.1 devices. Connect up to 4 additional USB 1.0,1.1,2.0 peripherals to the computer at the same time. 3. Plug and Play: Supports plug and play, hot swapping, and no need to shut down the computer before disconnecting the connected device. 4. Support System: Support for Windows98SE,for WIN Me,for WIN 2000,for WIN XP, for WIN NT 4.0,for WIN XP 64 Bit,for Vista,for Linux,for OS X. 5. Scope of Application: PCI to USB2.0 expansion card can support the connection of up to 127 USB devices, while for each USB interface, suitable for connecting USB mobile hard disk, USB mouse, scanner, keyboard, digital camera and other USB devices Specification: Item Type: PCI to USB2.0 Internal Expansion Card Material: PCB Size: Approx. 118 x 112 x 20mm / 4.6 x 4.4 x 0.8in Interface Type: PCI Chip: 720101F1(BGA) Expansion Interface: External USB2.0x4, Internal USB A Pinx1 Transfer Rate: 480Mbps Usage Requirements: PC with at Least One Available 32 Bit PCI Slot System Requirements: For Windows98SE,for WIN Me,for WIN 2000,for WIN XP, for WIN NT 4.0,for WIN XP 64 Bit,for Vista,for Linux,for OS X. Package List: 1 x PCI to USB2.0 Internal Expansion Card1 x Screw