Motorola SURFboard SB6182 DOCSIS 3.0 Cable Modem DOCSIS/EuroDOCSIS 3.0-based, Backward compatible to DOCSIS 2.0 and 1.x Works the same as SB6180 but faster and more reliable! Channel bonding of up to 8 downstream and 4 upstream channels, 1 GHz capable tuners, Supports IPv4 and IPv6 to expand network addressing capabilities GigE (RJ-45) data port enables flexible, high-speed connectivity with Auto Negotiate and Auto MDIX