10 Best Xfinity Compatible Modems of 2025

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

May 2025 Edition

Editor's Choice

9.7

Save 44%

ARRIS

ARRIS (SB6190) - Cable Modem - Fast DOCSIS 3.0 32x8 Gigabit Cable Modem, For Comcast Xfinity, Cox, Spectrum and more, 1 Gbps Port, 800 Mbps Max Internet Speed, 2 Year Warranty - White

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Editor's bottom line:

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

Main Highlights

Power your home network with the SB6190 to deliver fast speeds and a reliable connection to the Internet. The SURFboard SB6190 is a DOCSIS 3.0 modem that's capable of download speeds up to 1.4 Gbps.
Get internet speeds up to 1.4 Gbps for downloads and 262 Mbps for uploads based on your cable ISP subscription.
Gigabit Ethernet port connects to your computer or router for fast downloads.
Stream HD video and games on multiple devices at the same time.
Download 32 channels and upload 8 channels to future proof your modem as your Cable ISP enhances service offerings.

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Picked by 261 people today

9.5

Hitron

Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 10x Faster Than DOCSIS 3.0 | 2.5 Gbps Ethernet Cable Modem ONLY

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Main Highlights

FAST SPEEDS: Works with Internet plans up to 2.33 Gbps for Xfinity customers, up to 1 Gbps for Spectrum customers, and up to 2 Gbps for Cox customers. Make sure your Internet plan matches these speeds to get the best performance!
2.5 GIGABIT ETHERNET PORT provides more speed to your router. Connect to a router, access point or wifi mesh system to take full advantage of these faster speeds throughout your home.
CONNECT WITH A WIFI ROUTER or WIFI MESH to connect all of your WiFi devices to the Internet and harness 2.5 Gbps speeds to your end devices! (No Built-in WiFi/Router Capabilities)
DITCH THE RENTAL FEES - Say goodbye to those pesky modem rental fees by switching to the CODA56. Replacing your leased DOCSIS 3.1 modem can save you up to $168 a year. (Savings may vary by provider).
CERTIFIED TO WORK WITH Comcast Xfinity, Comcast Xfinity Business, Charter Spectrum, Cox Gigablast, Cable One Sparklight, and Zito Media. Also works with Astound, Grande, RCN, and Wave.
DOES NOT WORK WITH DSL, Fiber, Fixed Wireless or Satellite Services. Please note that this internet modem is not compatible with Optimum, AT&T, Verizon, CenturyLink, Google Fiber, DISH, DirecTV, StarLink, or any bundled voice service.
GET THE RIGHT MODEM FOR YOU: Before purchasing, contact your Internet Service Provider (ISP) to confirm that this modem is compatible with your Internet plan and meets your specific needs. This cable Internet modem DOES NOT HAVE BUILT-IN WIFI or ROUTING CAPABILITIES.
FASTER GAMING AND STREAMING - Elevate your gaming, streaming, and video conferencing experiences with next-generation DOCSIS 3.1 technology. Benefit from 2 downstream and 2 upstream OFDM DOCSIS 3.1 channels, reducing latency in DOCSIS 3.1 devices for smoother, uninterrupted online activities.
A LEGACY OF PERFORMANCE AND TRUST - With over 30 years of experience, Hitron is a global pioneer in DOCSIS 3.1 modems and routers, a trusted expert known for delivering performance and reliability.
ENJOY PEACE OF MIND with technical support available Monday through Friday, a detailed knowledge base, FAQs, and easy product registration. Plus, your purchase is backed by a product warranty.

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9.5

Save 18%

NETGEAR

NETGEAR Cable Modem CM500 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400Mbps | DOCSIS 3.0

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Main Highlights

Save monthly rental fees: Model CM500 replaces your cable modem, saving you up to $168/yr in equipment rental fees.
Speeds by carrier: Spectrum (up to 400Mbps), Xfinity (up to 200Mbps), Cox (up to 150Mbps).
Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
Modem technology: Engineered with 16x4 channel bonding and DOCSIS 3.0.

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9.2

Save 20%

NETGEAR

Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)

20% OffFree Shipping

Main Highlights

Support all cable internet speed tiers, up to Gigabit (1000 Mbps) service. Separate router required for Wi-Fi
Docsis 3. 1 up to 10x faster download speeds than DOCSIS 3. 0. Docsis 3. 1 is OFDM 2x2+ DOCSIS 3. 0 32x8 channel bonding
Eliminate monthly cable Modem rental fees - up to $156 per year. Meets DOCSIS 3. 1 specifications and is backward compatible with DOCSIS 3. 0 networks
System Requirements- Cable broadband Internet service, Please check your cable Internet service provider web site for data speed tier compatibility and to ensure it provides DOCSIS 3.1 service, otherwise this modem will only work as a DOCSIS 3.0 modem,Microsoft Windows 7, 8, 10, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network, Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
CM1000-1AZNAS is not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with cable bundled voice services

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9.0

Motorola

Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | Approved by Comcast Xfinity, Cox, and Spectrum | for Cable Plans Up to 900 Mbps | DOCSIS 3.0

Main Highlights

Model MB7621 is recommended for actual cable Internet service speeds up to 650 Mbps. Wirecutter rates this the best modem for most people. A Full-Band Capture Digital Tuner ensures faster, more reliable Internet.
This cable modem's 1 Gigabit Ethernet port connects to a WiFi router, computer, HDTV, game station, or streaming video device. Great for use with Whole Home WiFi or Mesh networks like eero, Google WiFi, and Orbi. (This cable modem does not have a built-in wireless router or telephone call capability. The Motorola MG7315, MG7540, MG7550, and MG7700 have a built-in wireless router.)
Requires cable Internet service.Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, BrightHouse, CableOne, SuddenLink, RCN, 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 MB7621 has no phone jack.)
Setup is fast and easy using the quick start guide.
Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A 2-year warranty plus rugged lightning and power surge circuits protect your investment.

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8.8

Save 21%

NETGEAR

NETGEAR Nighthawk WiFi 6Cable Modem Router CAX30-100NAR Compatible with Xfinity, Spectrum, and Cox, AX2700 (Up to 2.7Gbps) DOCSIS 3.1 (Renewed)

21% OffFree Shipping

Main Highlights

Compatible with all major cable internet providers with internet speed up to 2Gbps. Currently certified with Spectrum and Cox (up to 1Gbps) and Xfinity (up to 800Mbps). Future speeds with these service providers may change over time. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
Coverage up to 2,500 sq. ft. and 25 concurrent devices with dual-band WiFi 6 (AX2700) speed (up to 2.7Gbps)
4 X 1 Gig Ethernet ports (supports port aggregation) and 1 USB 3.0 port for computers, game consoles, streaming players, storage drive, and other wired devices
Sets up easily with the Nighthawk app easily manage WiFi settings at the device and network level, test internet speed and monitor data usage
DOCSIS 3.1 and 32x8 channel bonding
Replaces your cable modem and WiFi router. Save up to $168/yr in equipment rental fees
Supports WPA/WPA2/WPA3 wireless security protocols

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8.6

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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8.3

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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8.1

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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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

ARRIS

ARRIS (SB6190) - Cable Modem - Fast DOCSIS 3.0 32x8 Gigabit Cable Modem, For Comcast Xfinity, Cox, Spectrum and more, 1 Gbps Port, 800 Mbps Max Internet Speed, 2 Year Warranty - White

44% OffFree Shipping

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

Power your home network with the SB6190 to deliver fast speeds and a reliable connection to the Internet. The SURFboard SB6190 is a DOCSIS 3.0 modem that's capable of download speeds up to 1.4 Gbps.
Get internet speeds up to 1.4 Gbps for downloads and 262 Mbps for uploads based on your cable ISP subscription.
Gigabit Ethernet port connects to your computer or router for fast downloads.
Stream HD video and games on multiple devices at the same time.
Download 32 channels and upload 8 channels to future proof your modem as your Cable ISP enhances service offerings.

Show Price

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