ARRIS S33 Surfboard DOCSIS 3.1 Multi-Gigabit Cable Modem 35 out of 5 Stars. 3 reviews Add ARRIS Surfboard DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum and Others, Wireless Technology - New Condition $189.00ARRIS Surfboard DOCSIS 3.1 Multi...