The Zoom 5651 X4 ADSL Router is a full-rate ADSL 2/2+ modem. The X4 delivers up to 24 Mbps data speeds over existing telephone wires and is suitable for use in homes or small offices. The Model 5651 is compatible with older ADSL protocols as well as the new ADSL 2/2+ standards for higher data speeds and extended distances over which high data rates can be delivered.* The Ethernet interface on the X4 provides connection to a computer running most operating systems, including Windows as well as Linux, Unix and Mac Operating system.