Model MB7220 is a 8x4 343 Mbps DOCSIS 3.0 cable modem certified by several leading cable service providers including Comcast XFINITY, Time Warner Cable, Cox, and BrightHouse. Owning this modem eliminates modem rental charges which are often $100 or more each year. With easy installation, high-speed, extensive compatibility, and superb support, Model MB7220 may be the ideal choice for just about any cable modem user. 8 X means that upto 8 cable data channels transmit data from the world wide web, eight times faster compared to DOCSIS 2.0; and around 4 stations carry data to the Internet. A Full-Band Capture digital tuner helps guarantee always fast speeds from the service provider. Even a 10/100/1000 Gigabit Ethernet (GigE) port allows attachment of a computer, router, HDTV, game station, or other Ethernet-capable product. Setup is fast and easy with a few quick steps set out at a quickstart guide. Experienced USA-based customer support specialists are ready and prepared to assist if you need them. This item is endorsed by a two-year warranty and contains ruggedized lightning and power surge circuits to supply extra protection of your investment. DOCSIS 3.0, 2.0, and 1.1 service and CableLabs certification ensure compatibility with cable services nationally. Best of all, the MB7220 delivers the value, performance, and attention to quality which continue to produce Motorola the major brand of cable modems. Please observe that the MB7220 plugs into computers, HDTVs, and different Ethernet-capable apparatus including any router of one's choice, however, the MB7220 doesn't have an integrated router. Motorola Model MG7310, for instance, has both a cable modem and a built-in router. Cable Modem Features: Supports IPv4 and IPv6 to get strong, adaptive network addressing.