DOCSIS 3.1 cable modem & Wi-Fi 5 router best for cable internet speed plans up to 1 Gbps Dual-concurrent AC2350 Wi-Fi. Four 1 Gigabit Ethernet Ports Compatible with Cox, Spectrum, Xfinity and other major U.S. cable internet providers Easily setup, manage and customize your modem with the SURFboard Central App 32 downstream x 8 upstream DOCSIS 3.0 channels or 2 downstream x 2 upstream OFDM DOCSIS 3.1 channels 2 Year Limited Warranty