10 Best Xfinity Modems
for December 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.9
SCORE
NETGEAR Nighthawk Cable Modem with Voice CM1150V - For Xfinity by Comcast Internet & Voice | Supports Cable Plans Up to 2 Gigabits | 2 Phone lines | 4 x 1G Ethernet ports | DOCSIS 3.1 (Renewed)

NETGEAR Nighthawk Cable Modem with Voice CM1150V - For Xfinity by Comcast Internet & Voice

Supports Cable Plans Up to 2 Gigabits, 2 Phone lines, 4 x 1G Ethernet ports, DOCSIS 3.1 (Renewed)

by Netgear Inc
What We like

BUILT FOR ULTIMATE SPEED: Best for cable provider plans up to 2 Gigabits speed

more infoarrow_drop_down

Product Features

  • VOICE PHONE SUPPORT: For use with Xfinity Voice service and up to 2 telephone lines with enhanced call features including caller ID, 3 way conference calling, call forwarding and more
  • COMPATIBLE WITH XFINITY INTERNET & VOICE SERVICE: Certified by Comcast for Xfinity. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and non Xfinity voice services
  • MODEM TECHNOLOGY: Engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3.1.Compatible Operating System:Windows 7,8,10,Vista,XP,2000, Mac OS. Compatible web browser:Microsoft Internet Explorer 5.0 or Later,Firefox 2.0 or later, Safari 1.4 or Later, Google Chrome 11.0 or Later
  • VERSATILE CONNECTIONS: 4 Gigabit Ethernet ports give you fast wired connections to your computer, separate WiFi router, printer, game box, and other devices
  • SAVE MONTHLY RENTAL FEES: Model CM1150V replaces your cable modem saving you up to $150/yr in equipment rental fees

Multi gig ethernet: link aggregation combines two 1g ports into one 2g port for faster wired ethernet speed Works with any wifi router: connect any wifi router to this modem's ethernet port to support all your wireless devices Modem technology: engineered with 32x8 channel bonding, ofdm 2x2, and docsis 3.1.compatible operating system:windows 7,8,10,vista,xp,2000, mac os. compatible web browser:microsoft internet explorer 5.0 or later,firefox 2.0 or later, safari 1.4 or later, google chrome 11.0 or later Save monthly rental fees: model cm1150v replaces your cable modem saving you up to $150/yr in equipment rental fees Versatile connections: 4 gigabit ethernet ports give you fast wired connections to your computer, separate wifi router, printer, game box, and other devices Compatible with xfinity internet & voice service: certified by comcast for xfinity. not compatible with verizon, at&t, centurylink, dsl providers, directv, dish and non xfinity voice services Voice phone support: for use with xfinity voice service and up to 2 telephone lines with enhanced call features including caller id, 3 way conference calling, call forwarding and more

2
9.8
SCORE
NETGEAR Cable Modem with Voice CM500V - For Xfinity by Comcast Internet & Voice | Supports Cable Plans Up to 300 Mbps | 2 Phone lines | DOCSIS 3.0 (Renewed)

NETGEAR Cable Modem with Voice CM500V - For Xfinity by Comcast Internet & Voice

Supports Cable Plans Up to 300 Mbps, 2 Phone lines, DOCSIS 3.0 (Renewed)

by Netgear Inc
What We like

VOICE PHONE SUPPORT: For use with Xfinity Voice service and up to 2 telephone lines with enhanced call features including caller ID, 3-way conference calling, call forwarding and more.

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Product Features

  • WORKS WITH ANY WiFi ROUTER: Connect any WiFi router to this modem's ethernet port to support all your wireless devices.
  • MODEM TECHNOLOGY: Engineered with 16x4 channel bonding and DOCSIS 3.0.
  • SAVE MONTHLY RENTAL FEES: Model CM500V replaces your cable modem saving you up to $150/yr in equipment rental fees.
  • ETHERNET CONNECTIONS: 1 Gigabit Ethernet port connects to your computer or separate Wi-Fi router.
  • BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps speed.

Modem technology: engineered with 16x4 channel bonding and docsis 3.0. Compatible with xfinity internet & voice service: certified by comcast for xfinity. not compatible with verizon, at&t, centurylink, dsl providers, directv, dish and non-xfinity voice services. Save monthly rental fees: model cm500v replaces your cable modem saving you up to $150/yr in equipment rental fees. Works with any wifi router: connect any wifi router to this modem's ethernet port to support all your wireless devices. Built for fast speed: best for cable provider plans up to 300 mbps speed. Ethernet connections: 1 gigabit ethernet port connects to your computer or separate wi-fi router.

3
9.4
SCORE
ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem, Certified for Xfinity Internet & Voice (black)

ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem

Certified for Xfinity Internet & Voice (black)

by CommScope
What We like

Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers

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Product Features

  • Two 1-Gigabit Ethernet ports and 2 Telephony ports for Xfinity digital voice service
  • Xfinity internet service required Does not include Wi-Fi
  • Best for Xfinity internet speed plans up to 2 Gbps
  • DOCSIS 3 1 Cable Modem with 32 downstream x 8 upstream DOCSIS 3 0 channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels

Docsis 3 1 cable modem with 32 downstream x 8 upstream docsis 3 0 channels, 2 downstream x 2 upstream ofdm docsis 3 1 channels Xfinity internet service required does not include wi-fi Best for xfinity internet speed plans up to 2 gbps Two 1-gigabit ethernet ports and 2 telephony ports for xfinity digital voice service

4
9.4
SCORE
NETGEAR Nighthawk Cable Modem with Voice CM1150V - For Xfinity by Comcast Internet & Voice | Supports Cable Plans Up to 2 Gigabits | 2 Phone Lines | 4 x 1G Ethernet Ports | DOCSIS 3.1

NETGEAR Nighthawk Cable Modem with Voice CM1150V - For Xfinity by Comcast Internet & Voice

Supports Cable Plans Up to 2 Gigabits, 2 Phone Lines, 4 x 1G Ethernet Ports, DOCSIS 3.1

by Netgear Inc
What We like

BUILT FOR ULTIMATE SPEED: Best for cable provider plans up to 2 Gigabits speed.

more infoarrow_drop_down

Product Features

  • SAVE MONTHLY RENTAL FEES: Model CM1150V replaces your cable modem saving you up to $168/yr in equipment rental fees.
  • COMPATIBLE WITH XFINITY INTERNET & VOICE SERVICE: Certified by Comcast for Xfinity. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and non-Xfinity voice services.
  • Ideal for Gigabit cable Internet plan. Delivers true Multi-Gig Internet speeds with link aggregation** support.
  • MODEM TECHNOLOGY: Engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3.1.
  • VOICE PHONE SUPPORT: For use with Xfinity Voice service and up to 2 telephone lines with enhanced call features including caller ID, 3-way conference calling, call forwarding and more.

Works with any wifi router: connect any wifi router to this modem's ethernet port to support all your wireless devices. Ideal for gigabit cable internet plan. delivers true multi-gig internet speeds with link aggregation** support. Multi-gig ethernet: link aggregation combines two 1g ports into one 2g port for faster wired ethernet speed. Modem technology: engineered with 32x8 channel bonding, ofdm 2x2, and docsis 3.1. Versatile connections: 4 gigabit ethernet ports give you fast wired connections to your computer, separate wifi router, printer, game box, and other devices. Compatible with xfinity internet & voice service: certified by comcast for xfinity. not compatible with verizon, at&t, centurylink, dsl providers, directv, dish and non-xfinity voice services. Voice phone support: for use with xfinity voice service and up to 2 telephone lines with enhanced call features including caller id, 3-way conference calling, call forwarding and more. Save monthly rental fees: model cm1150v replaces your cable modem saving you up to $168/yr in equipment rental fees.

5
8.7
SCORE
Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice

Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports

DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice

by MTRLC LLC
What We like

WIRELESS POWER BOOST FOR BETTER SPEED AND RANGE - adds high-performance WiFi power amplifiers to boost the wireless signals to the legal limit, giving a significant boost in speed and range. 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. NOT included is a backup battery option (Model 98250) that allows your phone to make calls for 8 hours on standby after power loss.

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Product Features

  • ELIMINATE UP TO $156 IN CABLE MODEM RENTAL FEES PER YEAR Say goodbye to monthly rental fees and landline phone costs.
  • THREE-IN-ONE CABLE MODEM, AC1900 ROUTER, AND XFINITY COMPATIBLE VOICE PORTS - Includes 24X8 DOCSIS 3. 0 cable modem, AC1900 Dual Band (2. 4GHz and 5GHz) Gigabit Router, four Gigabit (GigE) Ethernet ports, and two XFINITY Voice compatible phone ports. This product is approved by Comcast for Xfinity Internet and Voice, and recommended by Comcast for XFINITY Internet service speeds up to 400 Mbps.
  • BUILT-IN HIGH-SPEED ROUTER WITH AC1900 WIRELESS AND POWER BOOST - provides Internet access for WiFi devices including smartphones, notebooks, tablets, and more. Four 10/100/1000 Gigabit Ethernet LAN ports provide wired connections to Windows and Mac computers and other Ethernet-capable devices. A Broadcom cable modem chipset provides security from Denial of Service attacks.
  • REQUIRES COMCAST XFINITY INTERNET SERVICE. Approved by and for use with Comcast Xfinity and Xfinity X1. This product will not work with any other Internet service provider.

Requires comcast xfinity internet service. approved by and for use with comcast xfinity and xfinity x1. this product will not work with any other internet service provider. Eliminate up to $156 in cable modem rental fees per year say goodbye to monthly rental fees and landline phone costs. Three-in-one cable modem, ac1900 router, and xfinity compatible voice ports - includes 24x8 docsis 3. 0 cable modem, ac1900 dual band (2. 4ghz and 5ghz) gigabit router, four gigabit (gige) ethernet ports, and two xfinity voice compatible phone ports. this product is approved by comcast for xfinity internet and voice, and recommended by comcast for xfinity internet service speeds up to 400 mbps. Built-in high-speed router with ac1900 wireless and power boost - provides internet access for wifi devices including smartphones, notebooks, tablets, and more. four 10/100/1000 gigabit ethernet lan ports provide wired connections to windows and mac computers and other ethernet-capable devices. a broadcom cable modem chipset provides security from denial of service attacks.

6
8.5
SCORE
ARRIS SURFboard SBG7600AC2 DOCSIS 3.0 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Approved for Cox, Spectrum, Xfinity & others (black)

ARRIS SURFboard SBG7600AC2 DOCSIS 3.0 Cable Modem & AC2350 Dual-Band Wi-Fi Router

Approved for Cox, Spectrum, Xfinity & others (black)

by ARRIS Solutions, Inc.
What We like

Compatible with major U.S. Cable Internet Providers including Cox, Spectrum, Xfinity & others. Cable internet service required. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers.

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Product Features

  • Setup and manage your network with the SURFboard Manager app
  • DOCSIS Cable Modem, AC2350 dual-band Wi-Fi, 4 port Gigabit Router (cable digital voice service not supported)
  • Wave 2 AC2350 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports.
  • 32 downstream & 8 upstream channels. Best for cable internet speed plans up to 600 Mbps.

Docsis cable modem, ac2350 dual-band wi-fi, 4 port gigabit router (cable digital voice service not supported) Wave 2 ac2350 dual-band concurrent wi-fi router with 4 gigabit ethernet ports. 32 downstream & 8 upstream channels. best for cable internet speed plans up to 600 mbps. Setup and manage your network with the surfboard manager app

7
7.3
SCORE
NETGEAR CM700 (32x8) DOCSIS 3.0 Gigabit Cable Modem. Max download speeds of 1.4Gbps. Certified for XFINITY by Comcast, Time Warner Cable, Charter & more (CM700) (Renewed)

NETGEAR CM700 (32x8) DOCSIS 3.0 Gigabit Cable Modem. Max download speeds of 1.4Gbps. Certified for XFINITY by Comcast

Time Warner Cable, Charter & more (CM700) (Renewed)

by Netgear Inc
What We like

System Requirements is 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. Check your cable Internet service provider web site for data speed tier compatibility

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Product Features

  • DOCSIS 3.0 up to 32x faster download speeds than DOCSIS 2.0.Memory: 8 MB NOR flash and 128 MB RAM
  • ELIMINATE MONTHLY CABLE MODEM RENTAL FEES - Up to $120 per year. Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more
  • Not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with bundled voice services. IPv6 next generation Internet addressing support
  • Support Cable Internet Service plans up to 500 Mbps. Separate router required for WiFi. 32x8 channel bonding

Not compatible with: verizon, at&t, or centurylink. not compatible with bundled voice services. ipv6 next generation internet addressing support Eliminate monthly cable modem rental fees - up to $120 per year. compatible with xfinity from comcast, spectrum, cox, cableone & more Support cable internet service plans up to 500 mbps. separate router required for wifi. 32x8 channel bonding Docsis 3.0 up to 32x faster download speeds than docsis 2.0.memory: 8 mb nor flash and 128 mb ram

8
7.3
SCORE
NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24x8

NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox

for Cable Plans Up to 400 Mbps, DOCSIS 3.0, 24x8

by Netgear Inc
What We like

Ideal for streaming 4K UHD content, fastest downloads, and high-speed online gaming

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Product Features

  • Support Cable Internet Service plans up to 300Mbps. Recommended for all speed tiers up to 500 Mbps. Separate router required for WiFi. 24x8 channel bonding
  • Cable Modem only (no WiFi router).Memory: 8 MB NOR flash and 128 MB RAM
  • DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port. DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0
  • Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more. Requires Cable Internet Service
  • Not compatible with: Verizon, AT&T, or CenturyLink

Cable modem only (no wifi router).memory: 8 mb nor flash and 128 mb ram Not compatible with: verizon, at&t, or centurylink Docsis 3.0 cable modem with 1 gigabit ethernet port. docsis 3.0 unleashes 8x faster download speeds than docsis 2.0 Compatible with comcast xfinity, time warner cable, charter, cox, cablevision, and more. requires cable internet service Support cable internet service plans up to 300mbps. recommended for all speed tiers up to 500 mbps. separate router required for wifi. 24x8 channel bonding

9
7.3
SCORE
Motorola MG7700 24x8 Cable Modem Plus AC1900 Dual Band WiFi Gigabit Router with Power Boost, 1000 Mbps Maximum Docsis 3.0 - Approved by Comcast Xfinity, Cox and More

Motorola MG7700 24x8 Cable Modem Plus AC1900 Dual Band WiFi Gigabit Router with Power Boost, 1000 Mbps Maximum Docsis 3.0

Approved by Comcast Xfinity, Cox and More

by MTRLC LLC
What We like

Built-in high-speed router with AC1900 wireless and Power boost - Provides internet access for Wi-Fi devices including smartphones, notebooks, tablets, and more. Four 10/100/1000 Gigabit Ethernet LAN ports provide wired connections to Windows and Mac computers and other Ethernet-capable devices. A Broadcom cable Modem Chipset provides security from denial of service attacks.

more infoarrow_drop_down

Product Features

  • Wireless power boost for better speed and range - adds high-performance Wi-Fi power amplifiers to boost the wireless signals to the legal limit, giving a significant Boost in speed and range. In addition, anybeam Performing at both 2.4 GHz and 5 GHz frequencies focuses the signal on wireless clients to further enhance performance and range
  • Eliminate up to $156 per year in cable Modem rental fees. (Savings are shown for Comcast Xfinity and vary by cable service provider.) certified by all leading cable service providers including Comcast Xfinity, Cox, Charter spectrum (no cable Modem is compatible with fiber optic, DSL, or satellite services, available from Verizon, AT&T, CenturyLink, Frontier, and others.)
  • Fast 24x8 DOCSIS 3.0 cable Modem Plus a built-in AC1900 Dual band (2.4GHz and 5GHz) Wi-Fi Gigabit Router with four Gigabit (GigE) Ethernet ports, power boost Wi-Fi amplifiers, firewall security, and more. The maximum modem speed is 1000 Mbps, supporting service speeds up to 650.

Wireless power boost for better speed and range - adds high-performance wi-fi power amplifiers to boost the wireless signals to the legal limit, giving a significant boost in speed and range. in addition, anybeam performing at both 2.4 ghz and 5 ghz frequencies focuses the signal on wireless clients to further enhance performance and range Eliminate up to $156 per year in cable modem rental fees. (savings are shown for comcast xfinity and vary by cable service provider.) certified by all leading cable service providers including comcast xfinity, cox, charter spectrum (no cable modem is compatible with fiber optic, dsl, or satellite services, available from verizon, at&t, centurylink, frontier, and others.) Fast 24x8 docsis 3.0 cable modem plus a built-in ac1900 dual band (2.4ghz and 5ghz) wi-fi gigabit router with four gigabit (gige) ethernet ports, power boost wi-fi amplifiers, firewall security, and more. the maximum modem speed is 1000 mbps, supporting service speeds up to 650.

10
7
SCORE
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

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

by Netgear
What We like

Built for ultimate speed: best for cable provider plans up to 2 gigabits speed.

more infoarrow_drop_down

Product Features

  • Save monthly rental fees: Model CM1200 replaces your cable modem saving you up to dollar 168/yr in equipment rental fees.
  • Compatible with all major cable internet providers: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
  • Versatile connections: 4 Gigabit Ethernet ports give you fast wired connections to your computer, separate WiFi router, printer, game box, and other devices.
  • Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
  • Multi-gig Ethernet: Link aggregation combines two 1G ports into one 2G port for faster wired Ethernet speed.

Compatible with all major cable internet providers: including certification by xfinity by comcast, cox, and spectrum. not compatible with verizon, at&t, centurylink, dsl providers, directv, dish and any bundled voice service. Versatile connections: 4 gigabit ethernet ports give you fast wired connections to your computer, separate wifi router, printer, game box, and other devices. Multi-gig ethernet: link aggregation combines two 1g ports into one 2g port for faster wired ethernet speed. Modem technology: engineered with 32x8 channel bonding, ofdm 2x2, and docsis 3.1. Save monthly rental fees: model cm1200 replaces your cable modem saving you up to dollar 168/yr in equipment rental fees. Works with any wifi router: connect any wifi router to this modem's ethernet port to support all your wireless devices.

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