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Comcast Modem

The modem is the first line of communication between your computer and network. The modem is responsible for receiving Internet data from and transmitting it to your computer. If you have a router, the modem also sends data to the router. Browse the top-ranked list of Comcast modems below along with associated reviews and opinions.  

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  1. ARRIS - SURFboard SB6190 32 x 8 DOCSIS 3.0 Cable Modem - White

    SKU: JX7YCY49XC

    Easy hook up with Comcast. Comcasts system recognized the modem right away with no problems at all. ...Should have made the chance earlier. Blows away Comcasts offering.

    Product Description

    A white DOCSIS 3.0 cable modem with 32x8 channel bonding for fast, reliable home internet connectivity.
    See all Cable Modems
    Your price for this item is $79.00
  2. ARRIS - SURFboard SB8200 32 x 8 DOCSIS 3.1 Gig-Speed Cable Modem - White

    SKU: JX7YCY46XF

    This is a speedy Modem! I replaced comcasts version with this unit and saw immediate speed increases. ...Perfect for Comcast...Works perfectly with Comcast internet, as long as Comcast isn't working on...

    Product Description

    A white DOCSIS 3.1 cable modem delivering gigabit speeds, compatible with major cable internet providers.
    See all Cable Modems
    Your price for this item is $140.99
    Save $28
    The previous price was $169.00
  3. NETGEAR - Nighthawk Mid/High-Split DOCSIS 3.1 Cable Modem - Black

    SKU: J2VY7Y4J9P

    Best modem to get for top tier comcast...We decided recently to cut the cable and we wanted a modem that would be upwards compatible with Comcast. This Nighthawk cable modem is amazing and easy to setup...

    Product Description

    A black DOCSIS 3.1 cable modem delivering multi-gigabit speeds, link aggregation, and broad provider compatibility.
    See all Cable Modems
    Your price for this item is $299.99
  4. ARRIS - SURFboard S33 32 x 8 DOCSIS 3.1 Multi-Gig Cable Modem with 2.5 Gbps Ethernet Port - White

    SKU: JX7YCY444F

    better than comcast...this is so much better than the one comcast provides...Works fine on 200mb Comcast Network Service...No problem with 200 mb Comcast service. Don't blame ARRIS for Comcast issues....

    Product Description

    A high-speed white DOCSIS 3.1 cable modem with 2.5 Gbps Ethernet for seamless multi-gig connectivity.
    See all Cable Modems
    Your price for this item is $199.00
  5. NETGEAR - Nighthawk AX6000 Wi-Fi 6 Router with DOCIS 3.1 Cable Modem - Black

    SKU: J2VY7YZXRP

    Great power! Had to contact Comcast to get connected...Good substitute for the Comcast cable or modem...Good product, Where is great substituting the Comcast modem Wi-Fi unit which is a $14-$15 savings...

    Product Description

    A powerful black Wi-Fi 6 router and DOCSIS 3.1 modem combo for fast, reliable multi-device connectivity.
    See all Wi-Fi Routers
    Your price for this item is $499.99
  6. NETGEAR - Nighthawk 32 x 8 DOCSIS 3.1 Voice Cable Modem - Black

    SKU: J2VY7YZPVL

    Easy setup with Comcast....Easy setup with Comcast. Increased my speeds over my outdated modem. ...Perfect for Comcast...Perfect for Comcast Home. Save money and buy this - no more fee and great wifi....

    Product Description

    A black DOCSIS 3.1 cable modem with dual voice ports delivers gigabit speeds and clear calls.
    See all Cable Modems
    Your price for this item is $349.99
  7. ARRIS - Surfboard Wi-Fi 7 Router with DOCSIS 3.1 Cable Modem - Black

    SKU: J3R8WC876X

    Product Description

    A black quad-band modem-router combo featuring Wi-Fi 7, DOCSIS 3.1, gigabit Ethernet, and advanced encryption.
    See all Wi-Fi Routers
    Your price for this item is $449.99
    Save $149
    The previous price was $599.00
  8. NETGEAR - Nighthawk Mid/High-Split 32 x 8 DOCSIS 3.1 Cable Modem - Black

    SKU: J2VY7Y4CPL

    Awesome speed uploads increased fro 50 Mbps to 350 uploads comcast

    Product Description

    A black DOCSIS 3.1 cable modem delivering multi-gig internet speeds for seamless streaming and gaming.
    See all Cable Modems
    Your price for this item is $219.99
    Save $30
    The previous price was $249.99
  9. Motorola - B12 32 x 8 DOCSIS 3.1 Cable Modem - Black

    SKU: J3R8W2ZJ8Z

    Product Description

    A high-performance black cable modem with DOCSIS 3.1 technology for ultra-fast, reliable internet connectivity.
    See all Cable Modems
    Your price for this item is $129.00
    Save $70
    The previous price was $199.99
  10. NETGEAR - Cable Modem CM500 - DOCSIS 3.0, up to 400 Mbps

    SKU: J32XHYL8GY

    Product Description

    A reliable cable modem with DOCSIS 3.0 technology, supporting up to 400 Mbps for major US providers.
    See all Cable Modems
    Your price for this item is $49.99
    Save $5
    The previous price was $54.99

FAQ

When choosing a Comcast-compatible modem, consider features such as DOCSIS version (preferably DOCSIS 3.0 or 3.1 for faster speeds), the number of downstream and upstream channels, built-in Wi-Fi capabilities, and compatibility with your Comcast Internet plan.

To activate your Comcast modem, connect it to your cable outlet and power it on. Then, use a computer or mobile device to visit the Xfinity activation website or call Comcast customer support. Follow the on-screen instructions to complete the activation process.

Yes, Comcast Xfinity allows you to use your own compatible modem. Make sure to check Comcast’s official list of approved modems to ensure compatibility with your specific internet plan.

A modem connects your home to your Internet Service Provider (ISP) and provides internet access, while a router distributes that internet connection to multiple devices within your home, either wirelessly or through Ethernet cables. Some devices combine both functions in one unit.

Check the product specifications for Comcast Xfinity compatibility or refer to the official Comcast approved modem list. Compatibility information is usually provided in the modem’s description or on the manufacturer’s website.