This hub is built strong and ideal for industrial environments. With the 4-port hub you can wall-mount or install onto a DIN rail for convenient access to the ports. This four port industrial hub can be bus powered or self powered with a three wire terminal block connector (7-24V). Plug in your most demanding next-generation peripherals and still enjoy data transfer speeds of up to 480 Mbps. And since the is backwards-compatible with USB 1.1 specifications your less demanding peripherals will still function perfectly with no adjustments. Provide your work area server room or industrial area with USB 2.0 connectivity.