The D-Link DU-520 internal adapter card is a 5 port USB (Universal Serial Bus) 2.0 PCI adapter. Each USB (Universal Serial Bus) port can transfer data up to 480 Mbps. At 40 times faster than the previous USB (Universal Serial Bus) 1.1
Specification, USB (Universal Serial Bus) 2.0 provides the speed & bandwidth for all of your USB (Universal Serial Bus) 2.0 needs. & because it is backwards compliant with USB1.1, you can use all of your USB (Universal Serial Bus) devices as well as new USB (Universal Serial Bus) 2.0products. The DU-520 provides five type A downstream ports for connecting USB (Universal Serial Bus) peripherals & USB (Universal Serial Bus) hubs. Configured directly by the operating system, the DU-520 operates in accordance with EHCI
Specification & compliant with PCI version 2.2. Attach Any USB (Universal Serial Bus) Devices to Your PC. As a standard USB (Universal Serial Bus) host controller, it directly interfaces between the USB (Universal Serial Bus) bus & the operating system. The DU-520 operates as the root USB (Universal Serial Bus) hub to provide five downstream interfaces. It will accept USB (Universal Serial Bus) data from any attached peripherals, hubs, or other High-Speed devices in compliance with USB (Universal Serial Bus)
Specification version 2.0. Supporting low-speed 1.5 Mb/sdevices, full-speed 12 Mb/s devices & high-speed 480 Mb/s. each port of the DU-520 creates a bridge between the attached USB (Universal Serial Bus) peripheral or USB (Universal Serial Bus) hub & the host computer.