D-Link DRU-4H

D-Link DRU-4H ... 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 hub operates seamlessly with both Microsoft's OpenHCI and Intel's UniversalHCI.

As a standard USB hub it buffers USB data from any attached peripherals or devices in compliance with USB Specification version 1.1 to provide an invisible extension of the USB bus. Supporting both low speed 1.5 Mbps devices and high speed 12 Mbps devices, each port creates a bridge between the peripheral and host computer. Power for the hub can be provided directly from the USB bus for connection of up to four low-powered USB devices. When using the included AC adapter in self-powered mode, the USB hub can support up to four high-powered USB devices or up to four downstream bus-powered USB hubs.