10 Best Cable Modems For Xfinity
for December 2021

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

1
9.7
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

  • BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps 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 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.
  • 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 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. Built for fast speed: best for cable provider plans up to 300 mbps speed. 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. Ethernet connections: 1 gigabit ethernet port connects to your computer or separate wi-fi router. Works with any wifi router: connect any wifi router to this modem's ethernet port to support all your wireless devices.

2
9.5
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.

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Product Features

  • Ideal for Gigabit cable Internet plan. Delivers true Multi-Gig Internet speeds with link aggregation** support.
  • SAVE MONTHLY RENTAL FEES: Model CM1150V replaces your cable modem saving you up to $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.
  • 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.

Multi-gig ethernet: link aggregation combines two 1g ports into one 2g port for faster wired ethernet speed. 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. 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. Versatile connections: 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. Works with any wifi router: connect any wifi router to this modem's ethernet port to support all your wireless devices.

3
9.5
SCORE
NETGEAR Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)

NETGEAR Gigabit Cable Modem (32x8) DOCSIS 3.1

for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)

by Netgear
What We like

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

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Product Features

  • 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
  • Support all cable internet speed tiers, up to Gigabit (1000 Mbps) service. Separate router required for Wi-Fi
  • CM1000-1AZNAS is not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with cable bundled voice services

Cm1000-1aznas is not compatible with: verizon, at&t, or centurylink. not compatible with cable bundled voice services 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 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

4
9.5
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
  • 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
  • Best for Xfinity internet speed plans up to 2 Gbps

Two 1-gigabit ethernet ports and 2 telephony ports for xfinity digital voice service 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

5
8.9
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.

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Product Features

  • 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.
  • Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
  • Save monthly rental fees: Model CM1200 replaces your cable modem saving you up to dollar 168/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.
  • 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. Save monthly rental fees: model cm1200 replaces your cable modem saving you up to dollar 168/yr in equipment rental fees. Modem technology: engineered with 32x8 channel bonding, ofdm 2x2, and docsis 3.1. 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.

6
8.7
SCORE
Motorola MB8600 DOCSIS 3.1 Cable Modem, 6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black

Motorola MB8600 DOCSIS 3.1 Cable Modem

6 Gbps Max Speed. Approved for Comcast Xfinity Gigabit, Cox Gigablast, and More, Black

by MTRLC LLC
What We like

A BROADCOM CHIPSET PROVIDES SECURITY FROM DENIAL OF SERVICE ATTACKS - a 10/100/1000 Gigabit Ethernet port allows connection of any SINGLE device with an Ethernet port including a router, Windows or Mac computer, HDTV, or game station.

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Product Features

  • ACTIVE QUEUE MANAGEMENT (AQM) SIGNIFICANTLY REDUCES INTERNET LATENCY - on both DOCSIS 3.1 and 3.0 services. AQM results in faster page loads for all Web traffic and greatly enhances interactive applications like online gaming and video conferencing. The MB8600 also includes a full-band capture digital tuner to enhance speed and save energy.
  • ELIMINATE UP TO 156 DOLLARS PER YEAR IN CABLE MODEM RENTAL FEES. (Savings are shown for Comcast Xfinity and vary by cable service provider.) Approved by Comcast Xfinity and Xfinity X1, Cox, and CableOne for all speeds including Comcast Gigabit services and Cox Gigablast. Not compatible with RCN. No cable modem is compatible with fiber optic, DSL, or satellite services, available from Verizon, AT&T, CenturyLink, Frontier, and others.)
  • TOP INTERNET SPEEDS FOR ALL CABLE INTERNET SERVICES - Wirecutter recommends this as the best cable modem for people using Gigabit Internet plans. Built-in DOCSIS 3.1 and DOCSIS 3.0 32x8 capabilities give top Internet speeds for all cable Internet services, from the slowest to the fastest.
  • WORKS WITH ANY WiFi ROUTER YOU LIKE - including Whole Home WiFi or Mesh routers like eero, Google WiFi, and Orbi. This cable modem does NOT have a built-in wireless router or telephone call capability.

Eliminate up to 156 dollars per year in cable modem rental fees. (savings are shown for comcast xfinity and vary by cable service provider.) approved by comcast xfinity and xfinity x1, cox, and cableone for all speeds including comcast gigabit services and cox gigablast. not compatible with rcn. no cable modem is compatible with fiber optic, dsl, or satellite services, available from verizon, at&t, centurylink, frontier, and others.) Active queue management (aqm) significantly reduces internet latency - on both docsis 3.1 and 3.0 services. aqm results in faster page loads for all web traffic and greatly enhances interactive applications like online gaming and video conferencing. the mb8600 also includes a full-band capture digital tuner to enhance speed and save energy. Top internet speeds for all cable internet services - wirecutter recommends this as the best cable modem for people using gigabit internet plans. built-in docsis 3.1 and docsis 3.0 32x8 capabilities give top internet speeds for all cable internet services, from the slowest to the fastest. Works with any wifi router you like - including whole home wifi or mesh routers like eero, google wifi, and orbi. this cable modem does not have a built-in wireless router or telephone call capability.

7
7.2
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, Black, 16x4 w/ Voice (CM500V-100NAS)

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, Black, 16x4 w/ Voice (CM500V-100NAS)

by Netgear Inc
What We like

16 downstream & 4 upstream channels providing efficient and reliable Internet access

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Product Features

  • Compatible devices: Compatible devices: Microsoft Windows 7, 8, 10, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network Compatible browsers Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
  • 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.
  • 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.
  • BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps speed.

Compatible devices: compatible devices: microsoft windows 7, 8, 10, vista, xp, 2000, mac os, or other operating systems running a tcp/ip network compatible browsers microsoft internet explorer 5.0, firefox 2.0, safari 1.4, or google chrome 11.0 browsers or higher 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. Built for fast speed: best for cable provider plans up to 300 mbps speed. 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. Save monthly rental fees: model cm500v replaces your cable modem saving you up to $168/yr in equipment rental fees.

8
7.2
SCORE
ARRIS SURFboard (24x8) DOCSIS 3.0 Cable Modem Plus AC2350 Dual Band Wi-Fi Router, approved for Cox, Spectrum, Xfinity & more (SBG7400AC2-RB) Black, Max Download Plan: 600 Mbps

ARRIS SURFboard (24x8) DOCSIS 3.0 Cable Modem Plus AC2350 Dual Band Wi-Fi Router

approved for Cox, Spectrum, Xfinity & more (SBG7400AC2-RB) Black, Max Download Plan: 600 Mbps

by CommScope
What We like

APPROVED with major U. S. Cable Providers Xfinity and Cox. Compatible with Spectrum (Time Warner, Charter and Brighthouse). REQUIRES Cable Internet Service. Not compatible with ATT, Verizon or CenturyLink

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Product Features

  • 3 products in 1: 24x8 Cable Modem, AC2350 Dual band Wi-Fi Router, 4 Port Gigabit Router
  • Cable Modem: 24 DOWNLOAD & 8 UPLOAD channels to maximize your Cable ISP service offerings. APPROVED for plans of 300 Mbps and above. Supports IPv4 and IPv6 the latest Internet standard
  • ARRIS CERTIFIED REFURBISHED with 1 year year
  • Router: AC2350 2. 4/5. 0 GHz Dual-band Concurrent Wi-Fi Router with 4 Gigabit Ethernet ports. Wi-Fi beamforming max coverage and performance

3 products in 1: 24x8 cable modem, ac2350 dual band wi-fi router, 4 port gigabit router Arris certified refurbished with 1 year year Router: ac2350 2. 4/5. 0 ghz dual-band concurrent wi-fi router with 4 gigabit ethernet ports. wi-fi beamforming max coverage and performance Cable modem: 24 download & 8 upload channels to maximize your cable isp service offerings. approved for plans of 300 mbps and above. supports ipv4 and ipv6 the latest internet standard

9
7.2
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
  • DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port. DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0
  • Cable Modem only (no WiFi router).Memory: 8 MB NOR flash and 128 MB RAM
  • Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more. Requires Cable Internet Service
  • Not compatible with: Verizon, AT&T, or CenturyLink

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 Cable modem only (no wifi router).memory: 8 mb nor flash and 128 mb ram

10
7.1
SCORE
NETGEAR Cable Modem CM700 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 500 Mbps | DOCSIS 3.0

NETGEAR Cable Modem CM700 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox

For Cable Plans Up to 500 Mbps, DOCSIS 3.0

by Netgear Inc
What We like

Built for super-fast speed: best for cable provider plans up to 500 mbps speed.

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Product Features

  • Modem technology: Engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3.1.
  • Save monthly rental fees: Model CM700 replaces your cable modem saving you up to $168/year 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.
  • Works with any Wi-Fi router: Connect any Wi-Fi 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 Wi-Fi router.

Save monthly rental fees: model cm700 replaces your cable modem saving you up to $168/year 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. Ethernet connections: 1 gigabit ethernet port connects to your computer or separate wi-fi router. Modem technology: engineered with 32x8 channel bonding, ofdm 2x2, and docsis 3.1. Works with any wi-fi router: connect any wi-fi router to this modem's ethernet port to support all your wireless devices.

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