All Comcast (Xfinity) Approved DOCSIS 3.0 and DOCSIS 3.1 Cable Modems
Modem list updated June 2019. Prices updated every hour. Below are all the modems on the Comcast
Approved Cable Modem List and that can be bought at
Amazon, Walmart or Best Buy. There are over 70 different modems on that list and we've gone through all of them to find the ones that can be purchased at major retailers.
If you're paying $11 a month to rent a modem from Comcast,
that's $132 a year or $630 over 5 years. You can buy a new one that will pay for itself in less than six months. Its easy to install. Just hookup modem, open web browser on attached computer and follow the on-screen instructions.
All of these modems below will work on all speed tiers: Economy, Performance, Blast and Extreme. However, in order to maximize your internet speed, customers with 100 Mbps plans should buy a modem with
at least 8 downstream channels. For 250 Mbps plans, buy a modem with at least 16 downstream channels. For Gigabit service (1000 Mbps), buy either the Arris SB8200, Motorola MB8600, Netgear C7800 or Netgear CM1000, which are DOCSIS 3.1 modems.
All of these modems are high quality and have pretty much the same features, except for number of downstream channels and those with routers built in. So don't worry too much about deciding which one to buy.
Price should be a main factor in your buying decision. Buy one now and start saving those rental fees!
You can click on any column header to sort that column. Also, you can narrow down your search by typing in the search box. For example, if you want to see only modems with Wifi-AC routers, type "ac" in the search box. Clicking on any price takes you to the retailer.
D/U Chs. = Down / Up Channels
*Sales Rank is based on analysis of retailer's sales.
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Price / Features Comparison
See every approved retail modem's price and features in an easily sorted and searchable table: