0 0 Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem (Personal Computers)By Motorola Buy new: $119.9916 used and new from $64.00 Customer Rating: Customer tags: cable modem(333), sb6120(272), motorola(231), surfboard(184), comcast(180), broadband(162), high speed(154), modem(137), internet(127), cox(20), charter(19), docsis 3(15)