Tripp Lite 4-Port USB 2.0 Hub

tripp lite's u225-004-r 4-port usb 2.0 hub allows you to attach multiple usb devices to a single usb port on your computer. The hub supports all three data transfer speeds: low speed (1.5 mbps), full speed (12 mbps) and hi-speed (480 mbps). Includes 4 ft. Usb 2.0 computer to hub cable (a-b). features: usb 2.0 and 1.1 compliant compact desktop design ( 4"w x 2.5"d x .625"h ) does not require external power, software, or complicated set-up procedures supports usb 2.0 spec up to 500ma per port on bus-power, 500ma from the usb 2.0 computer port is shared between the hub ports plug & play and hot swap capability compatible with windows, mac and linux system requirements: a windows, mac or linux computer with an available usb port