The NETGEAR CMD31T is a DOCSIS 3.0 cable modem designed for use with Comcast and Time Warner Cable. With a maximum downstream data rate of 150 Mbps and a maximum LAN data rate of 1000 Mbps, this modem provides fast and reliable internet connectivity. It features a Gigabit Ethernet port, IPv6 support, and is compact in size with dimensions of 4.5 inches in length, 6.9 inches in height, and 1.2 inches in width. The modem is white in color and has a WAN coaxial cable and Ethernet (RJ-45) ports for connectivity. It comes with a 1-year manufacturer warranty and is compatible with both PC and Mac computers.