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7 Best Modem Router Combos for Comcast Reviews in 2024

Our selection of top modem/router combo devices presents the ultimate solution to optimize your Comcast internet connection. These all-in-one units simplify your setup by merging the functions of a modem and a router into a single device. Our detailed guide introduces the finest options available, ensuring an enhanced online experience with Comcast. Curious about what factors to consider when making a purchase? Here’s a list to assist you:

  • DOCSIS Standard: Ensuring compatibility with Comcast’s infrastructure, the Data Over Cable Service Interface Specification (DOCSIS) standard is crucial. We specifically examined devices supporting DOCSIS 3.0 and 3.1, as they offer superior data transfer rates and are prepared for future broadband speeds.
  • Data Transfer Speed: We evaluated the data transfer speeds of each modem router combo, considering both peak speeds and consistency throughout the day. Products capable of maintaining high speeds while accommodating multiple devices received higher ratings.
  • WiFi Generation: With advancements in WiFi technology, it’s essential for modem router combos to support the latest WiFi generation. We assessed WiFi 5 (802.11ac) and WiFi 6 (802.11ax) capabilities, prioritizing devices that offer extensive coverage and meet the demands of modern internet usage.

When choosing the best modem router combos for Comcast, it’s vital to consider various factors beyond basic features. The following top picks include their key specifications for easy comparison. Additionally, we provide a comprehensive “Buying Guide” and FAQs section to help you select the ideal router for your needs.

Best Modem Router Combos for Comcast

Best Modem Router Combos for ComcastData Transfer SpeedsDOCSIS VersionWarranty
ARRIS G54 Modem Router Combos for ComcastUp to 18 GpbsDOCSIS 3.11 yearCheck On Amazon
Motorola Modem Router Combos for ComcastUp to 800 MbpsDOCSIS 3.12 yearCheck On Amazon
NETGEAR CAX80 Modem Router Combos for Comcastup to 3000 MbpsDOCSIS 3.1--Check On Amazon
ARRIS G34 Modem Router Combos for Comcastup to 3000 MbpsDOCSIS 3.12 yearCheck On Amazon
NETGEAR C7800 Modem Router Combos for Comcastup to 3200 MbpsDOCSIS 3.11 yearCheck On Amazon
Linksys Modem Router Combos for ComcastUp to 300 MbpsDOCSIS 3.0---Check On Amazon

Best Modem Router Combos for Comcast Reviews

1. ARRIS G54 Modem Router Combos for Comcast

ARRIS G54 DOCSIS 3.1 Modem Router Combos for ComcastThis versatile all-in-one modem/router combo from ARRIS, the G54 ensures a seamless internet experience for Comcast subscribers seeking top-notch performance. Combining DOCSIS 3.1 technology with Wi-Fi 7, it delivers lightning-fast speeds perfect for gaming, streaming, and video conferencing. Compatible with major U.S. cable providers like Comcast Xfinity, Cox, and Spectrum, it guarantees hassle-free setup and significant savings by eliminating monthly modem rental fees.

Crafted to meet modern connectivity demands, the ARRIS Surfboard G54 offers up to 18 Gbps Wi-Fi speeds and extensive coverage spanning 5,000 sq ft. Its four 1-Gigabit and one 10-Gigabit ethernet ports cater to both wireless and wired devices efficiently. With the SURFboard Central App, setup and network management are a breeze, featuring real-time monitoring and enhanced parental controls.


  • DOCSIS 3.1 technology
  • Wi-Fi 7 speeds up to 18 Gbps
  • 1 x 10-Gigabit Ethernet port
  • 4 x 1-Gigabit Ethernet ports
  • Coverage up to 5,000 sq ft
  • Compatible with Comcast Xfinity, Cox, Spectrum
  • Simple and secure setup via SURFboard Central App
  • Dedicated customer support
  • 1-Year Limited Warranty by ARRIS
  • Multi-Gig Internet Speed Plans support
  • Quad-Band technology


  • Saves up to $168 per year in rental fees
  • Easy and secure setup process
  • Extensive coverage suitable for large homes
  • Future-proof with DOCSIS 3.1 and Wi-Fi 7


  • Some connectivity issues

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2. Motorola Modem Router Combos for Comcast

Motorola Modem Router Combos for Comcast

Moving to the Motorola MG7700, this powerhouse combines a high-speed DOCSIS 3.0 cable modem with a built-in AC1900 Dual Band Wi-Fi Gigabit Router. Ideal for Comcast Xfinity, Cox, and Spectrum subscribers, it supports cable plans up to 800 Mbps, ensuring fast and reliable internet for streaming, gaming, and more. With Power Boost technology enhancing signal strength and range, it offers superior Wi-Fi coverage throughout your home while eliminating up to $156 per year in rental fees.

Featuring a built-in high-speed router with AC1900 wireless and Power Boost, the MG7700 ensures seamless connectivity for Wi-Fi devices. Equipped with four 10/100/1000 Gigabit Ethernet LAN ports, it accommodates all devices with ease. With its 24×8 DOCSIS 3.0 cable modem functionality, speeds of up to 1000 Mbps are achievable, making it a cost-effective and powerful solution for your home network.


  • DOCSIS 3.0 cable modem
  • AC1900 Dual Band Wi-Fi Gigabit Router
  • Up to 1000 Mbps modem speed
  • Supports cable plans up to 800 Mbps
  • Power Boost Wi-Fi amplifiers
  • 4 x 10/100/1000 Gigabit Ethernet LAN ports
  • Built-in firewall security
  • Compatible with Comcast Xfinity, Cox, Charter Spectrum
  • Dimensions: 8.6″L x 2.9″W x 9″H
  • 24 downstream channels for speeds over 1,000 Mbps
  • 8 upstream channels for speeds up to 246 Mbps


  • Eliminates up to $156 per year in rental fees
  • High-speed internet access for Wi-Fi and Ethernet devices
  • Power Boost technology enhances Wi-Fi signal strength
  • Easy setup and reliable performance


  • Lower than expected speeds

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3. NETGEAR CAX80 Modem Router Combos for Comcast

NETGEAR CAX80 Modem Router Combos for ComcastWhile those looking for more options from NETGEAR, apart from the above two competitors, the CAX80 is a formidable contender in the modem router combo market, especially for Comcast, Spectrum, and Cox subscribers. Designed to support cable provider plans up to 6Gbps, its built-in WiFi 6 router delivers exceptional coverage of up to 2,500 sq. ft. and can handle up to 30 concurrent devices. 

Equipped with four 1 Gig Ethernet ports and one 2.5 Multi-gig LAN port, it caters to a variety of wired connections for computers, game consoles, and other devices. The ease of setup through the Nighthawk app allows users to manage their WiFi settings effortlessly.


  • Compatible with Xfinity, Spectrum, Cox (not compatible with Verizon, AT&T, DSL)
  • Coverage up to 2,500 sq. ft., 30 devices
  • Dual-band WiFi 6 (AX6000) speed
  • 4 x 1 Gig Ethernet ports, 1 x 2.5 Multi-gig LAN port
  • 1 USB 3.0 port
  • DOCSIS 3.1 and 32×8 channel bonding
  • Eliminates up to $168/yr in equipment rental fees
  • NETGEAR Armor for advanced security
  • WPA/WPA2/WPA3 wireless security protocols
  • Dimensions: 8.5″L x 4.3″W x 10.4″H


  • Advanced security features with NETGEAR Armor
  • Supports ultra-fast internet speeds up to 6Gbps
  • Wide coverage suitable for large homes
  • Simple setup and management via the Nighthawk app


  • May not be compatible with certain bundled voice services

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4. ARRIS G34 Modem Router Combos for Comcast 

ARRIS G34 Modem Router Combos for ComcastARRIS returns with the G34, leveraging DOCSIS 3.1 modem technology and Wi-Fi 6 routing capabilities to deliver ultra-fast internet speeds and extensive coverage. Compatible with Comcast Xfinity, Cox, Spectrum, and more, it ensures seamless connectivity and supports speeds up to 1 Gbps. With a simple setup facilitated by the SURFboard Central App and four 1-Gigabit Ethernet ports, it offers convenience and versatility for your home network.

Featuring Wi-Fi 6 technology, the G34 not only delivers faster speeds but also improves network efficiency and reduces latency, ensuring a reliable internet setup. By merging functionality with performance, the ARRIS Surfboard G34 provides a powerful, reliable, and convenient solution for your internet needs.


  • DOCSIS 3.1 modem technology
  • Wi-Fi 6 (AX3000) speeds
  • Four 1-Gigabit Ethernet ports
  • Compatible with Comcast Xfinity, Cox, Spectrum
  • Dual-band frequency
  • Supports up to 1 Gbps max internet speeds
  • Special features include Internet Security, Guest Mode, Parental Control
  • Connectivity Technology: Wi-Fi, Ethernet, Coaxial Cable
  • 2-Year Warranty provided by ARRIS
  • Dedicated Customer Support
  • Simple and Secure Set-up via SURFboard Central App


  • Easy installation and network management with the SURFboard app
  • Eliminates rental fees, offering significant savings
  • DOCSIS 3.1 and Wi-Fi 6 ensure high-speed, efficient performance
  • Supports a wide range of devices simultaneously without lag


  • Some issues with signal range and connectivity

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5. NETGEAR C7800 Modem Router Combos for Comcast

NETGEAR Modem Router Combos for Comcast

The NETGEAR C7800 is a powerhouse in the modem router combo market, specifically designed to meet the needs of users with high-speed cable internet plans. Compatible with major cable providers like Xfinity by Comcast, Cox, and Spectrum, the C7800 supports internet speeds up to 2 Gigabits, making it perfect for demanding online activities such as 4K streaming, online gaming, and large file downloads. With its built-in DOCSIS 3.1 modem technology, the device offers fast and reliable connections, significantly reducing lag and buffering times.

The C7800 boasts an AC3200 WiFi speed, providing up to 3000 square feet of wireless coverage and the capacity to connect up to 45 devices simultaneously. This modem router combo is engineered with 32×8 channel bonding and DOCSIS 3.1 to ensure efficient internet usage and smooth data transmission. Its four Gigabit Ethernet ports and two high-speed USB 3.0 ports offer versatile connectivity options, making it easy to connect computers, game consoles, and other devices directly for maximum speed and reliability.


  • Compatible with Xfinity by Comcast, Cox, Spectrum
  • DOCSIS 3.1 with 32×8 channel bonding
  • AC3200 WiFi speed (up to 3200 Mbps)
  • Coverage up to 3000 square feet
  • Connects up to 45 devices
  • Four (4) Gigabit Ethernet ports
  • Two (2) high-speed USB 3.0 ports
  • Dual-band frequency (2.4 & 5 GHz)
  • Beamforming+ for better range and performance
  • Eliminates up to $168/year in equipment rental fees
  • Easy 5-minute setup


  • Eliminates costly modem rental fees
  • Extensive wireless coverage suitable for large homes
  • Supports a high number of connected devices without losing speed
  • Easy installation and setup process


  • Some issues with the 5GHz band stability

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6.  Linksys Modem Router Combos for Comcast

Linksys Modem Router Combos for ComcastThe Linksys CG7500 cable modem router is an all-in-one solution that combines the functionality of a high-speed DOCSIS 3.0 cable modem with an AC1900 Wi-Fi router. Certified for use with Comcast Xfinity and Spectrum by Charter, this device is designed to cater to the demands of modern internet users. Its dual-band technology and 24×8 channel bonding allow for faster internet speeds, up to 300 Mbps, making it suitable for HD video streaming, online gaming, and other bandwidth-intensive activities. The CG7500 eliminates the need for separate devices and monthly rental fees, offering a streamlined, cost-effective home network solution.

This modem router offers simple plug-and-play setup, ensuring you can get your network up and running quickly without the need for complicated installation processes. Its wireless-AC technology provides up to 1.9 Gbps of Wi-Fi speed across a wide coverage area, ensuring reliable internet access throughout your home. The CG7500 is equipped with four Gigabit Ethernet ports for high-speed wired connections, making it versatile for connecting various devices directly to your network for optimal performance.


  • DOCSIS 3.0 modem technology
  • AC1900 dual-band Wi-Fi (up to 1.9 Gbps)
  • 24×8 channel bonding for faster internet speeds
  • Compatible with Comcast Xfinity and Spectrum by Charter
  • Coverage for up to 3000 sq. ft.
  • Four Gigabit Ethernet ports
  • Intel Puma 6 chipset for high performance
  • Simple plug-and-play setup
  • Dual-band technology for less interference
  • Bonded channels for optimal efficiency
  • Includes Linksys AC1900, Ethernet cable, Power Adapter, Quick Start Guide
  • Recommended for gaming and high-bandwidth activities


  • Eliminates monthly rental fees, saving costs in the long term
  • Wide Wi-Fi coverage suitable for larger homes
  • High-speed internet capable of supporting multiple devices simultaneously
  • Easy setup without the need for a CD or complex installation process


  • Not compatible with Verizon, AT&T, and DSL providers

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Buying Guide for the Best Modem Router Combos for Comcast

When shopping for the best modem router combo for Comcast, there are several critical factors to consider to ensure you get a device that meets your needs for speed, reliability, and connectivity. Let’s dive into the key elements:

1. DOCSIS (Data Over Cable Service Interface Specification)

Why it Matters: DOCSIS is the standard that governs how data is transmitted over cable networks. The version of DOCSIS your modem router combo supports can significantly affect your internet speed and overall network performance. Higher versions offer improved efficiency and higher bandwidth capabilities.

What to Look For: Look for a modem router combo that supports DOCSIS 3.0 or higher, with DOCSIS 3.1 being the ideal for future-proofing your network. DOCSIS 3.0 supports up to 1 Gbps downstream, which is sufficient for most users, but DOCSIS 3.1 can support up to 10 Gbps downstream, catering to high-demand internet users and ensuring compatibility with next-generation internet speeds.

2. Data Transfer Speed

Why it Matters: The data transfer speed of your modem router combo determines how quickly you can download and upload data from the internet. It affects everything from streaming quality to download times and how smooth your online gaming experience is.

What to Look For: Data transfer speeds are often listed in Mbps (megabits per second) or Gbps (gigabits per second). For a household with multiple users streaming, gaming, or downloading simultaneously, look for a modem router combo that offers at least 600 Mbps. However, for more demanding tasks or larger households, speeds of 1 Gbps or higher are recommended.

3. WiFi Generation

Why it Matters: The WiFi generation (e.g., WiFi 5 (802.11ac) or WiFi 6 (802.11ax)) indicates the level of technology your router uses to broadcast its wireless signal. Newer generations offer improved speed, better range, and more efficient data transmission, especially in crowded networks.

What to Look For: For most current needs, a modem router combo with WiFi 5 (802.11ac) is adequate, providing speeds that can comfortably support HD streaming, online gaming, and other high-bandwidth activities. However, for households with many devices or for users looking to future-proof their setup, WiFi 6 (802.11ax) offers advantages in terms of speed (potentially above 1 Gbps), efficiency, and capacity, making it a wise choice for heavy usage and smart home setups.

4. Network Coverage

Why it Matters: Network coverage determines how well the WiFi signal reaches different parts of your home. Factors like the size of your home, layout, and the presence of obstacles (e.g., walls, furniture) can affect coverage.

What to Look For: Consider the square footage the device can cover. For smaller homes or apartments, a modem router combo covering up to 1500 square feet might suffice. Larger homes might require devices capable of covering 2500 square feet or more. Look for models that support mesh networking if you need to extend coverage without losing signal strength.

5. Ports

Why it Matters: The number and type of ports on your modem router combo can greatly impact its versatility. Ethernet ports allow for wired connections, which are faster and more stable than WiFi for devices like desktop computers, gaming consoles, and smart TVs. USB ports can facilitate file sharing or printer networking within your home.

What to Look For: At a minimum, ensure the modem router combo has several Gigabit Ethernet ports (typically 2-4) for high-speed wired connections. USB ports are a bonus for shared printers or external hard drives. Look for at least one USB 3.0 port for faster data transfer rates.

6. WiFi Bands

Why it Matters: WiFi bands affect your network’s capacity and interference resistance. Dual-band routers offer 2.4 GHz and 5 GHz bands, balancing range and speed. The 2.4 GHz band is more congested but offers wider coverage, while the 5 GHz band provides faster speeds at a shorter range.

What to Look For: A dual-band router is essential for balancing speed and coverage. For households with many devices and high bandwidth demands, a tri-band router, which adds an additional 5 GHz band, can reduce congestion and improve performance.

7. Network Compatibility

Why it Matters: Ensuring your modem router combo is compatible with Comcast’s network is crucial. Not all modem router combos work with every ISP, and using an incompatible device can result in poor performance or connectivity issues.

What to Look For: Check for Comcast certification or compatibility on the product description. This ensures the device has been tested to work with Comcast’s infrastructure and services. Additionally, verify that the modem router combo supports the specific Comcast plan you subscribe to, ensuring you can fully utilize the speeds you pay for.

Modem Router Combos for Comcast – FAQs

1. How can you connect to a modem router for internet access?

Ans: Almost all modem routers out there allow you to connect to the internet via a wired or a wireless connection. While a wireless connection is made possible over WiFi, wired connections rely on an RJ45 port present on the back of your modem router. Even though a wireless connection can also offer decently high-performance speeds, a wired connection will offer you much better stability in most cases.

2. How many devices can you connect to a modem router for connecting to the internet?

Ans: While different modem routers support a different number of maximum devices like up to 25 devices or up to 40 devices, almost all of them should be more than enough for most users in terms of the maximum number devices that you can connect to a modem router at once.

3. What’s the benefit of having external antennas with modem router combos for Comcast?

Ans: In case you are in the market for a new modem router combo for Comcast, then you may find a few options with inbuilt antennas. Such models with external antennas will generally offer better network coverage along with much-improved network stability.


Choosing the right modem router combo for your Comcast plan can be overwhelming. Let’s explore three top options based on different needs:

  • Ultra-Performance: NETGEAR Nighthawk CAX80 This powerhouse boasts DOCSIS 3.1 and Wi-Fi 6 for blazing-fast speeds up to 6 Gbps. Ideal for future-proofing your network and handling demanding applications like VR gaming.
  • Best Value: Motorola MG7700 This reliable and budget-friendly option offers DOCSIS 3.0 and AC1900 Wi-Fi for speeds up to 800 Mbps. Perfect for average internet usage, streaming, and casual gaming.
  • Reliable Mid-Range: ARRIS Surfboard G34 This solid choice combines DOCSIS 3.1 and Wi-Fi 6 AX3000 for smooth streaming and multitasking. Great for medium-sized homes with moderate internet needs.

Remember, these are just a few highlights. Research and compare based on your specific needs and budget for the perfect match!

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