Best Modem For Comcast Xfinity (and Helpful Buying Tips)
Newton Keebler Sep 23, 2023 11:02 AM
The Comcast Xfinity modem is a high-performance modem designed for use with the Comcast high-speed internet service. It provides fast, reliable internet access with speeds up to 600 Mbps. The modem has advanced features such as dual-band Wi-Fi, four Ethernet ports, and support for DOCSIS 3.0 and IPv6 to ensure a high-speed connection.
The modem is also compatible with Xfinity Voice, allowing customers to make and receive phone calls over their internet connection. It is easy to set up and can be used with most major operating systems. With the Comcast Xfinity modem, users can enjoy an enhanced online experience with fast and reliable internet.

Top Options
No | Image | Product | Score | Check |
---|---|---|---|---|
1 | ![]() | Best Overall: Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | 9.7 | Check Price |
2 | ![]() | Best For Voice Service: NETGEAR Nighthawk Xfinity Modem | 8.9 | Check Price |
3 | ![]() | Best Modem Router Combo: MOTOROLA MG7540 16x4 Cable Modem Plus AC1600 Dual Band Wi-Fi Gigabit Router | 9 | Check Price |
4 | ![]() | Best Budget Option: MOTOROLA 16x4 Cable Modem | 9.5 | Check Price |
5 | ![]() | Best Value: Motorola MT8733 WiFi 6 Router + Multi-Gig Cable Modem + 2 Phone Ports | 9.4 | Check Price |
#1 Best Overall:Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem
The Motorola MB8611 is a DOCSIS 3.1 multi-gig cable modem that is capable of delivering ultra-fast internet speeds. It is designed to pair with any WiFi router, making it an ideal choice for your home or office. This modem is approved for use with Comcast Xfinity, Cox Gigablast and Spectrum, offering maximum speeds of up to 2.5 Gbps and a maximum internet speed of 2500 Mbps. It is easy to install and is equipped with LED lights that indicate the status of the modem's connection. Get the most out of your internet service with the Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem.
#2 Best For Voice Service:NETGEAR Nighthawk Xfinity Modem
The NETGEAR Nighthawk Xfinity Modem with Voice (CM2050V) is the perfect cable modem for your home or small business. This DOCSIS 3.1 Gigabit modem supports cable plans up to 2.5 Gbps, so you can enjoy blazing-fast internet speeds. Plus, it comes with two phone lines, so you can make and take calls over your internet connection. With its advanced features and easy setup, you can quickly and easily get connected to your ISP. Enjoy superior internet speeds and reliable performance with NETGEAR Nighthawk Xfinity Modem with Voice (CM2050V)!
#3 Best Modem Router Combo:MOTOROLA MG7540 16x4 Cable Modem Plus AC1600 Dual Band Wi-Fi Gigabit Router
The Motorola MG7540-10 is the ideal choice for your home networking needs. This powerful 16x4 DOCSIS 3.0 cable modem is capable of delivering speeds up to 686 Mbps, making it perfect for streaming HD videos, faster downloads, and high-speed online gaming. It also comes with an AC1600 dual-band Wi-Fi router with DFS, which means you can enjoy a high-performance, secure, and reliable wireless connection throughout your home. And, it's certified for use with major cable internet providers like Comcast Xfinity, Cox, and Charter Spectrum. So forget about monthly rental fees and get the MG7540-10 for your home today!
#4 Best Budget Option:MOTOROLA 16x4 Cable Modem
The Motorola MB7420-10 is a high-performance 16x4 DOCSIS 3.0 cable modem that provides speeds up to 686 Mbps. This modem is certified by cable internet providers like Comcast XFINITY, Charter Spectrum, Time Warner Cable, Cox, and BrightHouse, and is compatible with most major cable providers in the U.S. It's designed to provide high-speed internet access with maximum reliability and performance. The modem has four 10/100/1000 Gigabit Ethernet ports to connect multiple devices, and also includes a coax cable for easy installation. The Motorola MB7420-10 is an ideal solution for home or small office networking needs.
#5 Best Value:Motorola MT8733 WiFi 6 Router + Multi-Gig Cable Modem + 2 Phone Ports
The Motorola AX6000 is the ultimate solution for achieving ultra-fast internet speeds. With its powerful DOCSIS 3.1 modem and a powerful WiFi 6 router, this device offers superior performance for Xfinity Voice and Gigabit Internet Plans up to 2500 Mbps. The Multi-Gig Cable Modem ensures reliable and consistent connection speeds, while the two phone ports provide added convenience. This device also comes with the Smart MotoSync app, which allows easy setup and management of your network. With the Motorola AX6000, you can experience the fastest and most reliable internet connection available.

- Our Rating9.7
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- BrandMotorola

- Our Rating8.9
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- BrandNETGEAR

- Our Rating9.0
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- BrandMotorola
- Prime

- Our Rating9.5
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- BrandMotorola

- Our Rating9.4
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- BrandMotorola

- Our Rating9.1
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- BrandMotorola
- Prime

- Our Rating8.7
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- BrandARRIS
- Prime

- Our Rating8.4
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- BrandNETGEAR
- Prime

- Our Rating8.6
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- BrandMotorola
- Prime

Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers
Check Price On Amazon- Our Rating8.1
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- BrandNETGEAR

- Our Rating8.0
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- BrandNETGEAR
- Prime

- Our Rating8.4
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- BrandNETGEAR

- Our Rating8.5
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- BrandNETGEAR
- Prime
Last update on 2023-09-23 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API
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The best modem for Comcast Xfinity is the Arris Surfboard SB8200. Image source: Amazon.com
What is the fastest modem available for Comcast Xfinity?
The fastest modem currently available for Comcast Xfinity is the Arris SURFboard SB8200. This modem supports speeds up to 2 Gbps (2000 Mbps).
What features should I look for when choosing a modem for Comcast Xfinity?
1. Compatibility: Make sure that the modem you are purchasing is compatible with Comcast Xfinity.
2. Speed: Make sure the modem you are purchasing is fast enough to support the speeds that you need.
3. Number of Ports: Make sure the modem you are purchasing has enough ports to accommodate all of your devices.
4. Price: Make sure that the modem is within your budget.
5. Quality: Make sure the modem you are purchasing is a high quality brand.
6. Customer Service: Make sure the manufacturer of the modem you are purchasing has good customer service and support.
Are there any compatible modems that are wireless?
Yes, there are a few different types of wireless modems that are compatible with different types of internet connections. Examples include LTE and 4G modems, which are compatible with mobile networks, and Wi-Fi modems, which are compatible with wireless internet connections.
Are there any modems that are compatible with Comcast Xfinity and offer Voice services?
Yes, there are several modems that are compatible with Comcast Xfinity and offer Voice services. These include the Arris TM722G, the Arris TM822G, the Arris TM1602, the Arris TG1682G, and the Technicolor TC8717T.
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The best modem for Comcast Xfinity is the Arris Surfboard SB8200. Image source: Amazon.com