The Promate iHub adds four additional USB ports to your Mac (or PC), allowing you to connect USB devices such as digital cameras, phones, external hard drives, flash drives, and printers all at one convenient place. iHub does not require any software or complicated installation process, just plug it in and use. This Mountable USB hub attaches to your monitor without taking up precious desktop space and provides convenient access to four ultra-fast USB 3.0 ports.