10 Best Cable Modems For Comcast Xfinity of 2021

Top 10  Cable Modems For Comcast Xfinity:  Editor Recommended

1. NETGEAR Cable Modem CM700 – Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 800Mbps | DOCSIS 3.0

NETGEAR Cable Modem CM700 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 800Mbps | DOCSIS 3.0

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.
  • Save monthly rental fees: Model CM700 replaces your cable modem saving you up to 168 Dollars/year in equipment rental fees.
  • Speeds by carrier: Xfinity (up to 800Mbps), Cox (up to 500Mbps), Spectrum (up to 400Mbps).
  • 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.
  • Modem technology: Engineered with 32×8 channel bonding, OFDM 2×2, and DOCSIS 3.1.

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

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

Features:

  • 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 16×4 channel bonding and DOCSIS 3.0.

3. 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

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

Features:

  • 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.

4. ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem | Approved for Cox, Xfinity, Spectrum & others | White , Max Internet Speed Plan 1000 Mbps

ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem | Approved for Cox, Xfinity, Spectrum & others | White , Max Internet Speed Plan 1000 Mbps

Features:

  • DOCSIS 3 1 Cable Modem best for cable internet speed plans up to 1 Gbps. Note, a 2nd IP address is required from your cable internet provider to reach 1 Gbps.
  • 32 downstream x 8 upstream DOCSIS 3 0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels
  • Two 1-Gigabit Ethernet ports
  • Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
  • Cable internet service required; Does not inlcude Wi-Fi and does not support cable digital voice service

5. Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and Spectrum | for Cable Plans Up to 800 Mbps | DOCSIS 3.0 + Gigabit Router

Motorola MG7700 Modem WiFi Router Combo with Power Boost | Approved by Comcast Xfinity, Cox and Spectrum | for Cable Plans Up to 800 Mbps | DOCSIS 3.0 + Gigabit Router

Features:

  • Fast 24×8 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.
  • Eliminate up to 156 dollars 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.)
  • Built-in high-speed router with AC1900 wireless and Power boost – Provides internet access for Wi-Fi devices including smartphones, notebooks, tablets, and more. 4 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.
  • 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

6. NETGEAR Cable Modem WiFi Router Combo C6220 – Compatible With All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 200 Mbps | AC1200 WiFi Speed | DOCSIS 3.0

NETGEAR Cable Modem WiFi Router Combo C6220 - Compatible With All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 200 Mbps | AC1200 WiFi Speed | DOCSIS 3.0

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.
  • SAVE MONTHLY RENTAL FEES: Model C6220 replaces your cable modem and WiFi router saving you up to $168/yr in equipment rental fees.
  • SPEEDS BY CARRIER: Xfinity (up to 200Mbps), Cox (up to 150Mbps), Spectrum (up to 100Mbps).
  • FAST WiFi PERFORMANCE: Get up to 1200 sq ft wireless coverage and 20 devices connected with AC1200 speed (up to 1200 Mbps).
  • VERSATILE CONNECTIONS: 2 Gigabit Ethernet ports and 1 USB port give you fast wired connections to your computer, printer, game box, storage drive, and other devices.
  • MODEM TECHNOLOGY: Engineered with 16×4 channel bonding and DOCSIS 3.0.
  • SAFE & SECURE: Supports WEP and WPA/WPA2 wireless security protocols.

7. NETGEAR Renewed C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8×4 Download speeds. Certified for Xfinity from Comcast, Spectrum, Cox, Cablevision & More

NETGEAR Renewed C3700-100NAR C3700-NAR DOCSIS 3.0 WiFi Cable Modem Router with N600 8x4 Download speeds. Certified for Xfinity from Comcast, Spectrum, Cox, Cablevision & More

Features:

  • Netgear Certified Refurbished product is manufacturer refurbished to work and look as new with 90 Day Warranty and email support. All accessories are included with limited documentation and additional information online. Netgear recommends to udpate the firmware for the device to be up to date.
  • DOCSIS 3.0 cable modem unleashes 8x faster download speeds up to 340 Mbps faster, smoother WiFi, and works with all major cable Internet providers (Not Compatible with Cable Bundled Voice Services).
  • Certified to work with Cable Internet Providers like XFINITY from Comcast, Time Warner Cable, Cox, Cablevision, Bright House Networks, & More (Not Compatible with Cable Bundled Voice Services).
  • 8×4 channel bonding with Gigabit Ethernet Ports for fast wired, connections USB port to wirelessly share your hard drive.Double firewall protection (SPI and NAT firewall)
  • “Netgear Refurbished product may have a removed serial number. You will need to state the product is refurbished (state the full part number) if emailing customer support. See the attached (image) flyer to obtain the Serial Number and MAC Address information that maybe needed by your Cable provider before contacting them.”

8. NETGEAR DOCSIS 3.1 Gigabit Cable Modem. Max download speeds of 6.0 Gbps, For XFINITY by Comcast, Spectrum, and Cox. Compatible with Gig-Speed from Xfinity (CM1000)

NETGEAR DOCSIS 3.1 Gigabit Cable Modem. Max download speeds of 6.0 Gbps, For XFINITY by Comcast, Spectrum, and Cox. Compatible with Gig-Speed from Xfinity (CM1000)

Features:

  • Support all cable internet speed tiers, up to Gigabit (1000 Mbps) service. Separate router required for WiFi.
  • DOCSIS 3.1 up to 10X faster download speeds than DOCSIS 3.0. DOCSIS 3.1 is OFDM 2×2 plus DOCSIS 3.0 32×8 channel bonding
  • ELIMINATE MONTHLY CABLE MODEM RENTAL FEES – Up to dollar 120 per year;32 downstream and 8 upstream channels for DOCSIS 3.0 connection
  • Not compatible with: Verizon, ATandT, or CenturyLink. Not compatible with bundled voice services.
  • Compatible with Xfinity from Comcast, Cox, Mediacom Cable, and more.

9. 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

Features:

  • 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.
  • 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.
  • 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.
  • 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.

10. MOTOROLA 16×4 Cable Modem, Model MB7420, 686 Mbps DOCSIS 3.0, Certified by Comcast XFINITY, Charter Spectrum, Time Warner Cable, Cox, BrightHouse, and More

MOTOROLA 16x4 Cable Modem, Model MB7420, 686 Mbps DOCSIS 3.0, Certified by Comcast XFINITY, Charter Spectrum, Time Warner Cable, Cox, BrightHouse, and More

Features:

  • This 16×4 DOCSIS 3.0 cable modem provides speeds up to 686 Mbps, sixteen times faster than DOCSIS 2.0. A Full-Band Capture digital tuner ensures a faster, more reliable Internet.
  • Cable modem’s Ethernet port connects to a computer, HDTV, game station, or wireless router. (This Model MB7420 cable modem does NOT have a built-in wireless router and does not have a telephone adapter or phone jack. The Motorola MG7310, MG7315, MG7540 and MG7550 have a built-in wireless router.)
  • Requires cable Internet service. Certified by Comcast XFINITY for residential speeds up to Extreme 300, by Comcast Business for speeds up to Deluxe 250, Time Warner Cable, Cox, Charter Spectrum, BrightHouse, and other leading cable service providers for modem ownership programs that typically save rental charges of 120 dollar or more per year
  • Setup is fast and easy with a few quick steps set out in a Quick Start guide. Experienced USA-based customer support specialists are there to help if you need them.

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