This is a slim High Speed USB 2.0 4 Port Hub.It easily adds four more high speed USB ports to your laptop or PC/MAC. It's great for most low-power USB peripheries, USB mouse, USB keyboard, USB web camera, USB sound card, etc.
PC windows 98SE/ME/2000/XP/Vista/7/8
Fully compliant with the Universal Seria Bus
Specification version 1.1/2.0,full speed up to 480Mbps
single chip integrated USB hub controller with
embedded proprietary processor.
Support four bus-powered downstream ports
Built-3.3voltage reguator allows single+5V operating voltage
resulting in reduced overall system cost
provide up to 500mA current to each port which is sufficient for
diverse devices, Hot Plug &play.
Mac OS 8.6 or Above, X.
Linux 2.4 ior above.