Zoom AC1900 Cable Modem/Router certified by Comcast Time Warner and others. DOCSIS 3.0 8X4 modem 802.11ac wireless 2.4 and 5.0 GHz 3x3 radios with Broadcom Anybeam beamformingand four Gigabit Ethernet ports. New Cable modem and not replacing any other.2 year warranty.