Add four independent USB 2.0 ports capable of a maximum transfer rate of 480Mbps per port to a PCI Express PC.The PEXUSB400 4 Port PCI Express USB 2.0 Adapter Card lets you connect up to 4 USB 2.0 external peripherals to your PCIe-enabled computer, with unique capability to provide full high-speed USB data transfer rates of up to 480 Mbps on each port independently.The high-speed adapter card installs easily in an x1 PCI Express slot, and with 4 independent USB 2.0 ports, can address up to 127 USB devices per port for a maximum of 508 USB devices. This adapter also includes one shared internal USB header for connecting internal USB 2.0 peripherals.
Four independent/dedicated USB 2.0 ports ensure that you get the maximum performance possible from your connected USB 2.0 peripherals.; Each port supports up to 127 USB devices, enabling a maximum of 508 connected USB peripherals.; Backed by a StarTech.com lifetime warranty and free lifetime technical support.