Welcome to our store! 1、5 Ports: The 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: The 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 your computer simultaneously. 3、Plug and Play: Supports plug and play, hot swapping, and no need to turn off the computer before disconnecting the connected device. 4、System Support: Supports 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: The PCI to USB2.0 expansion card can support connecting up to 127 USB devices, while for each USB interface, suitable for connecting USB mobile hard drive, USB mouse, scanner, keyboard, digital camera and other USB devices. 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 Card 1 x Screw If you receive your item and find any product problems, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.