Arris modem for Comcast/Xfinity internet - $5 (Chicago/Garfield Ridge)

Arris modem for Comcast/Xfinity internet 1

Arris modem for Comcast/Xfinity internet 1 thumbnail

Massasoit Ave near Archer Ave

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condition: excellent

make / manufacturer: Arris

model name / number: CM820a

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Arris CM820a DOCSIS 3.0 cable modem is for Comcast/Xfinity internet service. As of this date (Jan 2026), this modem is listed under the Xfinity listing of preferred modems, having a wired download speed of up to 285 Mbps. Note that this modem is for internet service only. May also work with other internet service providers (ISP), so check to verify compatibility before purchasing. Sold as is, no returns, cash only.

post id: 7880217374

posted: 2025-09-09 11:01

updated: 2026-01-10 16:31

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Arris modem for Comcast/Xfinity internet - electronics - by owner -...

Arris CM820a DOCSIS 3.0 cable modem is for Comcast/Xfinity internet service. As of this date (Jan 2026), this modem is listed under the Xfinity listing of preferred modems, having a wired download...