The USB2-222 is a 4 port USB (Universal Serial Bus) 2.0 compliant hub allows up to 4 USB (Universal Serial Bus) 1.1 or 2.0 devices to be connected to you computer. It supports the high speed transmission rate of up to 480 Mbps & is fully backward compatible with USB (Universal Serial Bus) revision 1.1 devices. The USB2-222 makes an excellent solution for those wanting to maximize the USB (Universal Serial Bus) intake of their PC.