10 Best Comcast Xfinity Approved Modems of 2025

Tested and Reviewed: Top 10 Comcast Xfinity Approved Modems deals with expert ratings from 8.1 to a perfect 10

June 2025 Edition

Editor's Choice

9.7

Hitron

Hitron CODA DOCSIS 3.1 Modem | 1 Gbps Max Internet Speeds | Certified with Comcast Xfinity, Charter Spectrum, Cox & More | 10x Faster Than DOCSIS 3.0 | 1 Gbps Ethernet Cable Modem ONLY

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Editor's bottom line:

“This comcast xfinity approved modems is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

SUPPORTS INTERNET PLANS up to 1 Gbps. Compatible with Cable Internet service plans up to 1 Gbps, ensuring fast and reliable connectivity for all your devices.
WORKS WITH WIFI ROUTERS or WIFI MESH: Pair with a WiFi Router with this 3.1 DOCSIS Modem to connect all of your WiFi devices to the Internet. This cable internet modem DOES NOT have a built-in WIFI router.
STOP RENTING & START SAVING - This internet modem replaces your leased docsis 3.1 modem so you can say Good-bye to equipment rental fees and save up to $168/yr. (Savings shown for Comcast Xfinity and can vary.)
CERTIFIED to work with Comcast Xfinity, Comcast Xfinity Business, Charter Spectrum, Cox Gigablast, CableOne Sparklight, Cogeco Breezeline and Zito Media. Also works with Astound, Grande, RCN and Wave. Check your Internet Service Provider (ISP) website to confirm compatibility.
NOT COMPATIBLE with AT&T, Verizon, CenturyLink, DISH, DirecTV, Optimum, StarLink and any bundled voice service. Does NOT WORK with DSL, Fiber, Fixed Wireless or Satellite Services.
BUILT FOR PERFORMANCE and RELIABILITY. Hitron brings over 30 years of experience to your home and is a worldwide leader in DOCSIS computer networking modems and routers.
FAST STREAMING, CONFERENCING & GAMING - The CODA high speed modem features next gen DOCSIS 3.1 with 2 downstream and 2 upstream OFDM DOCSIS 3.1 channels reducing latency in DOCSIS 3.1 devices.
WORKS with DOCSIS 3.0. This gigabit modem can be used on DOCSIS 3.1 or DOCSIS 3.0 networks.
EASY TO SETUP... in 3 simple steps: Plug in the provided COAX cable to an active cable outlet, then connect the power supply. Plug in the Ethernet cable to your WiFi Router or WiFi Mesh system.

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Picked by 252 people today

9.5

Save 17%

Netgear

NETGEAR Nighthawk Modem Router Combo C7000-Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox,Plans Up to 800Mbps | AC1900 WiFi Speed | DOCSIS 3.0

17% OffFree Shipping

Main Highlights

Compatible with major cable internet providers including Xfinity, Spectrum, Cox and more. NOT compatible with Verizon, AT andT, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service. Best for cable provider plans up to 800Mbps
Coverage up to 1,800 sq. ft. and 30 devices with WiFi 5 AC1900 speed (up to 1900Mbps)
Replaces your cable modem and WiFi router. Save up to $168/yr in equipment rental fees
4 X 1 Gig Ethernet ports and 1 USB 2.0 port for computers, game consoles, streaming players, storage drive, and other wired devices
Supports WPA/WPA2 wireless security protocols
NETGEAR Armor software provides an automatic shield of security for your WiFi and connected devices for real-time protection against hackers and added privacy with VPN. 30-day trial included
NETGEAR routers have security features enabled out of the box with automatic firmware updates, and industry-leading safety features to help protect you and your family
Easily set up and manage your WiFi with the Nighthawk app
Made for use in the US only

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9.5

ARRIS

ARRIS (SBG10) - Cable Modem Router Combo - Fast DOCSIS 3.0 16 x 4 Gigabit & AC1600 WiFi, For Comcast Xfinity, Cox, Spectrum, 400 Mbps Max Internet Speeds

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Main Highlights

A Trusted Name in Home Connectivity: Get high speeds, better coverage, and a two-in-one product! With the ARRIS SURFboard SBG10 Wi-Fi Cable Modem, you will increase your network capability and get fast streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing.
Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
Modem Technology: DOCSIS 3.0 is a reliable, broadly available, and affordable technology that delivers high speed internet to your home devices.
Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up and customize your Wi-Fi network, and add devices to your home network! Once setup is complete, the app provides real-time monitoring of the devices on your network, enhanced parental controls like setting time limits and pausing internet and much more.
The SURFboard SBG10 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and other cable operators across the country. Check your Internet Service Provider (ISP) website to confirm compatibility.

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9.2

Save 8%

Motorola

Motorola MG7550 - Modem with Built in WiFi | Approved for Comcast Xfinity, Cox | For Plans Up to 300 Mbps | DOCSIS 3.0 + AC1900 WiFi Router | Power Boost Enabled

8% OffFree Shipping

Main Highlights

16x4 DOCSIS 3.0 cable modem plus a built-in AC1900 Dual Band (2.4 GHz and 5 GHz) WiFi Gigabit Router with four Gigabit (GigE) Ethernet ports, a firewall DFS, Power Boost, and more. This product is recommended for actual cable Internet service speeds up to 375 Mbps. A Broadcom cable modem chipset provides security from Denial of Service attacks. WiFi performance is exceptionally good, even in multi-dwelling units with lots of WiFi noise from neighbors. DFS and Power Boost are key
Requires cable Internet service. Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter, Time Warner Cable, Suddenlink, WOW., CableOne and other cable service providers. Eliminate cable modem rental fees up to 156 dollars per year. (Savings are shown for Xfinity and vary by cable service provider. No cable modem is compatible with fiber optic, DSL, or satellite services from Verizon, AT&T, CenturyLink, Frontier, and others. Model MG7550 has no phone jack.)
Built-in high-speed Wi-Fi router with AC1900 Wi-Fi, and Power Boost, and DFS provides Internet access for Wi-Fi devices including smartphones, notebooks, tablets, game stations, HDTVs, Amazon Echo, Google Home, Chromecast, Roku, Amazon Fire TV, and AppleTV. Four 10/100/1000 Gigabit Ethernet LAN ports provide wired connections to Windows and Mac computers, HDTVs, game stations, streaming TV devices, and other Ethernet-capable devices.
Wireless Power Boost adds high-performance WiFi power amplifiers to boost the wireless signals to the legal limit, giving a significant boost in speed and range. The router can work on WiFi DFS frequencies, unlike most routers, so it is much less vulnerable to WiFi interference from neighbors. In addition, AnyBeam beamforming at both 2.4 GHz and 5 GHz frequencies focuses the signal on wireless clients to further enhance performance and range.
Integrating the cable modem and router creates a reliable connection that reduces unwieldy wiring and power adapter clutter while conserving desk space. The vertical design minimizes shelf space and improves cooling while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment.

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9.0

Save 11%

ARRIS

ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels

11% OffFree Shipping

Main Highlights

A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem is designed to bring you superior connectivity, increase your network capability and provide faster streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing. .Telephone Port : None. HD Multi-Media Streaming : Yes.
Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
System requirements 1. High-speed Internet access account 2.Web browser access Internet Explorer, Google Chrome, Firefox, or Safari 3. Compatible operating systems: 4. Windows 10 5. Windows 8 6. Windows 7 Service Pack 1 (SP1) Note: Although older versions of Microsoft Windows operating systems are no longer specifically supported, they should still function with your SB8200. a.Macintosh 10.4 or higher b. UNIX c. Linux
Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking.
Compatibility: The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Blast!/Extreme Pro) and others. It's approved for cable internet speed plans up to 1-Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility.
What's in the Box: When you purchase you will get an ARRIS SURFboard SB8200 Cable Modem, Power Supply, Quick-Start guide, and 2-year warranty card.
Ethernet Ports: Has two 1-Gigabit ethernet ports to connect to a Wi-Fi router or other wired device.
Dedicated Customer Support: Live Chat and Phone Support available 8am -1am EST.
Compatible Service Providers: Advanced Stream, Altice Optimum, Altice Suddenlink, Armstrong, Atlantic Broadband, CableOne/Sparklight, Click CableTV, Comcast/Xfinity, Cox, Grande Communications, New Wave/Sparklight, Mediacom, Midcontinent Communications, RCN, Service Electric, Spectrum, Wave Broadband, WOW, Zito Media

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8.8

Save 18%

Motorola

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds

18% OffFree Shipping

Main Highlights

Ultra-fast DOCSIS 3.1 performance - Delivers true Gigabit-plus speeds. Supports fast internet plans with Comcast Xfinity, Cox, and Spectrum. Backward compatible with 32x8 DOCSIS 3.0.
Pairs with any WiFi router - Seamlessly compatible with any WiFi router to connect all your devices. This cable modem does NOT have a built-in wireless router or telephone call capability.
Multi-gigabit Ethernet speed - A 2.5 GB Ethernet port delivers true high-speed connectivity to even the fastest routers and computers, providing downstream speeds just below 2,500 Mbps and upstream speeds up to 800 Mbps when supported by your internet service plan.
Fast streaming, conferencing, gaming - Applies Active Queue Management (AQM) for reduced Internet latency and better app performance, including online gaming, conferencing, and streaming.
Extreme cost savings - Owning your own modem typically saves the home $168 per year in monthly rental charges. (Savings described is for Comcast Xfinity and vary by service provider.)
Built for reliability - Motorola is a worldwide leader in technology people depend on. Comes with a 2-year warranty and free support from our team of USA technicians.

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8.6

Save 24%

NETGEAR

NETGEAR Nighthawk Cable Modem CM1200 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet ports | DOCSIS 3.1, Black

24% OffFree Shipping

Main Highlights

Compatible with all major cable internet providers with internet speed up to 2Gbps. Currently certified with Cox, Spectrum and Xfinity.. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
Works with any WiFi router: Connect any WiFi router to this modems Ethernet port to support all your wireless devices
Save monthly rental fees: Model CM1200 replaces your cable modem saving you up to $168/yr in equipment rental fees
Four (4) Gigabit Ethernet ports give you fast wired connections to your computer, separate WiFi router, printer, game box, and other devices
Modem technology: Engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3.1
Multi-gig ethernet: Link aggregation combines two 1G ports into one 2G port for faster wired ethernet speed.
Made for use in the US only

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8.3

Save 14%

ARRIS

ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit WiFi For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty

14% OffFree Shipping

Main Highlights

Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking.
Compatibility: The SURFboard S33 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Blast!/Extreme Pro) and others. It's approved for cable internet speed plans up to 2.5-Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility.

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Best Value

8.1

Save 36%

ARRIS

ARRIS (G34) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds

36% OffFree Shipping

Main Highlights

A Trusted Name in Home Connectivity: Get high speeds, low latency, and a two-in-one product! With the ARRIS SURFboard G34 Wi-Fi Cable Modem, you will increase your network capability and get ultra-fast streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing..MoCA Technology : No. Telephone Port : None.
Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up and customize your Wi-Fi network, and add devices to your home network! Once setup is complete, the app provides real-time monitoring of the devices on your network, enhanced parental controls like setting time limits and pausing internet and much more.
Compatibility: The SURFboard G34 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Gigabit/Gigabit x2) and others. It's approved for cable internet speed plans up to 1 Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility.
What's in the Box: When you purchase you will get an ARRIS SURFboard G34 Cable Modem, Power Supply, Quick-Start guide, and 2-year warranty card.
Router Technology: Features four 1-Gigabit ethernet ports and delivers Wi-Fi 6 speeds up to 3 Gbps (3,000 Mbps).
Dedicated Customer Support: Live Chat and Phone Support available 8am -1am EST.
Warranty Provided by ARRIS: Product ships with 2-Year Limited Warranty.
Dual-concurrent AX3000 Wi-Fi

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8.1

ARRIS

ARRIS (S34) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Cable Modem, for Comcast Xfinity, Cox, Spectrum & More, 2.5 Gbps Max Internet Speeds, Next-Generation Upload Optimized, 2 Year Warranty

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Main Highlights

Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
Modem Technology: DOCSIS 3.1 is the latest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking
Next Generation Upload Speed Optimized: Switchable upstream filters to support optimized upload service tiers (provider dependent).
Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking.
Compatibility: The SURFboard S34 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It's approved for cable internet speed plans up to 2.5-Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility.
The SURFboard S34 will future-proof your home with the latest DOCSIS 3.1 technology, supporting multi-gigablit internet plants. The SURFboard S34 features support for the the new, next generation upload speed tiers offered by cable internet providers. YWith a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port it's capable of combined download speeds up to 3.5 Gbps. The S34 is the newest modem in the SURFboard lineup, delivering the fastest speeds and the latest technology without the premium rental cost.

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Our Best Overall Choice

Best Choice

9.7

Hitron

Hitron CODA DOCSIS 3.1 Modem | 1 Gbps Max Internet Speeds | Certified with Comcast Xfinity, Charter Spectrum, Cox & More | 10x Faster Than DOCSIS 3.0 | 1 Gbps Ethernet Cable Modem ONLY

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

SUPPORTS INTERNET PLANS up to 1 Gbps. Compatible with Cable Internet service plans up to 1 Gbps, ensuring fast and reliable connectivity for all your devices.
WORKS WITH WIFI ROUTERS or WIFI MESH: Pair with a WiFi Router with this 3.1 DOCSIS Modem to connect all of your WiFi devices to the Internet. This cable internet modem DOES NOT have a built-in WIFI router.
STOP RENTING & START SAVING - This internet modem replaces your leased docsis 3.1 modem so you can say Good-bye to equipment rental fees and save up to $168/yr. (Savings shown for Comcast Xfinity and can vary.)
CERTIFIED to work with Comcast Xfinity, Comcast Xfinity Business, Charter Spectrum, Cox Gigablast, CableOne Sparklight, Cogeco Breezeline and Zito Media. Also works with Astound, Grande, RCN and Wave. Check your Internet Service Provider (ISP) website to confirm compatibility.
NOT COMPATIBLE with AT&T, Verizon, CenturyLink, DISH, DirecTV, Optimum, StarLink and any bundled voice service. Does NOT WORK with DSL, Fiber, Fixed Wireless or Satellite Services.
BUILT FOR PERFORMANCE and RELIABILITY. Hitron brings over 30 years of experience to your home and is a worldwide leader in DOCSIS computer networking modems and routers.
FAST STREAMING, CONFERENCING & GAMING - The CODA high speed modem features next gen DOCSIS 3.1 with 2 downstream and 2 upstream OFDM DOCSIS 3.1 channels reducing latency in DOCSIS 3.1 devices.
WORKS with DOCSIS 3.0. This gigabit modem can be used on DOCSIS 3.1 or DOCSIS 3.0 networks.
EASY TO SETUP... in 3 simple steps: Plug in the provided COAX cable to an active cable outlet, then connect the power supply. Plug in the Ethernet cable to your WiFi Router or WiFi Mesh system.

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