SB6120 vs SB6121 Motorola Cable Modems

This is a discussion on SB6120 vs SB6121 Motorola Cable Modems within the Comcast forums, part of the Cable and Satellite Providers category.

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  1. #1

    Default SB6120 vs SB6121 Motorola Cable Modems

    Can anyone tell me the difference between the SB6120 and the SB6121? The SB6120 is almost more, but both modems are DOCSIS 3.0 so what would be the advantage?

  2. #2
    Moderator n2rj's Avatar
    Join Date
    Apr 2010
    Wantage NJ


    On/off switch and MoCA filter in the 6121. Nothing software wise, they even run the same f/w. I have the 6120, works fine. Get whatever is cheaper.
    Ryan, N2RJ

    Extra class certified antenna NUT

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