Motorola Arris SB 6121 - $10 (Norwood Park)

East River Rd near Catalpa

make / manufacturer: Arris

model name / number: SB6121

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Motorola Arris SB 6121 Cable Modem. Works perfectly with Comcast / Xfinity

Comcast charges $10/month to rent modems.

I am moving to somewhere that does not have Comcast internet. Asking $20 or best offer.

post id: 7880740391

posted: 2025-09-11 12:05

updated: 2025-10-10 14:15

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Motorola Arris SB 6121 - computers - by owner - electronics sale -...

Motorola Arris SB 6121 Cable Modem. Works perfectly with Comcast / Xfinity Comcast charges $10/month to rent modems. I am moving to somewhere that does not have Comcast internet. Asking $20 or best...