Ask Search Post
  1. Item is great working condition.
    ssharma08 ·2 days ago on eBay
  2. Clear modem works great.
    stevste6heeh ·2 days ago on eBay
  3. NEW ARRIS Motorola SB6121 Surfboard Cable Modem DOCSIS 3.0 - COMCAST / TWC / COX - ( White Box ) Includes: • Arris SB6121 To...
    bayusa ·3 days ago on eBay
  4. Used, terrific condition.
    kris-ever ·3 days ago on eBay
  5. Used modem in near perfect condition. Still runs like new. Comes bundled with the power cord, an ethernet cable, and a DSL cable. Feel fr...
    blakbelt116 ·3 days ago on eBay
  6. Condition: like new Motorola's easy-to-use SB6121 SURFboard DOCSIS 3.0 Cable Modem unlocks the power of high-speed data. Utilizing the ...
    coventon ·5 days ago on eBay


Safety Tips
  • Meet the seller in person and inspect items before paying.
  • Be cautious of underpriced offers.
  • Don’t wire money or take advance payments.
  • Only pay for shipping if you know the seller.

To learn more, visit the Safety Center. Report suspicious listings by clicking on .