The D-Link DSB-H4 is a 4-port Universal Serial Bus USB hub that allows a user to connect up to four USB peripherals or devices to their USB ready PC or iMac. It provides an out of the box industry standard Bus. The DSB-H4 is targeted at PC and iMac users that are expanding the number of USB ports on their system.The DSB-H4 is designed to provide quick and easy access to the four type "A" downstream ports for connecting peripherals with USB support, other USB hubs and devices. A single type "B" upstream port is provided for connecting to the host computer, or another USB hub. Configured directly by the operating system, the DSB-H4 operates seamlessly with both Microsoft's OpenHCI and Intel's UniversalHCI. Diagnostic LEDs are mounted on the top of the device to provide the user with power state and port status. The DSB-H4 is packaged with all necessary manuals, a 6-foot USB 'A' to 'B' cable, and a DC power supply to ensure that the user is able to easily and quickly install and use the device.