Top 9 Xfinity Cable Modem DOCSIS 3.1 – Computer Networking Modems

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1. ARRIS

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ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem, Xfinity, Approved for Cox, Spectrum & others

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ARRIS #ad - Two 1-gigabit Ethernet ports capable of link aggregation. Cable internet service required Does not inlcude Wi-Fi and does not support cable digital voice service. Docsis 3 1 cable modem best for cable internet speed plans up to 2 Gbps. 32 downstream x 8 upstream docsis 3 0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels. Others not compatible with aTT, Verizon, CenturyLink or other DSL or Fiber internet providers. Note, a 2nd ip address is required from your cable internet provider to reach 2 Gbps.
BrandARRIS #ad
ManufacturerARRIS Solutions, Inc. #ad
Height5.25 Inches
Length5.13 Inches
Width1.7 Inches
Part NumberSB8200
ModelSB8200
Warranty2 Year

2. Motorola

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

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Motorola #ad - Flexible compatibility - pair with any wi-fi router you’d like, hdtv, windows or mac computer, google wi-fi, including Whole Home Wi-Fi or Mesh routers like eero, and Orbi. Not compatible with RCN. Built-in doCSIS 3. 1 and docsiS 3. 0 32x8 capabilities give top Internet speeds for all cable Internet services.

Proactive network security - A broadcom chipset provides advanced 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, or game station. The mb8600 also includes a full-band capture digital tuner to enhance speed and save energy. Approved by comcast xfinity and xfinity x1, available from Verizon, Cox, DSL, or satellite services, and CableOne for all speeds including Comcast Gigabit services and Cox Gigablast.

Top internet speeds for all multi-gigabit speed tiers - wirecutter recommends this model as the best cable modem for people using Gigabit Internet plans. No cable modem is compatible with fiber optic, AT&T, CenturyLink, Frontier, and others. Active queue management aqm - aqm significantly reduces internet latency on both docsIS 3. 1 and 3. 0 services, resulting in faster page loads for all Web traffic and enhanced interactive applications like online gaming and video conferencing.
BrandMotorola #ad
ManufacturerMTRLC LLC #ad
Height7.88 Inches
Length7.25 Inches
Width2.25 Inches
Part NumberMB8600-10
ModelMB8600
Warranty2 YEAR MANUFACTURER

3. NETGEAR

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Compatible with All Cable Providers Including Xfinity by Comcast, Black CM1000-1AZNAS, Spectrum, Cox | for Cable Plans Up to 1 Gigabit | DOCSIS 3.1, NETGEAR Cable Modem CM1000

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NETGEAR #ad - Compatible with all major cable internet providers: including certification by Xfinity by Comcast, AT&T, DirecTV, COX, DSL providers, CenturyLink, and Spectrum.

Save monthly rental fees: model cM1000 replaces your cable modem saving you up to dollar 168/year in equipment rental fees. Works with any wi-fi router: connect any Wi-Fi router to this modem's Ethernet port to support all your wireless devices. Not compatible with Verizon, DISH and any bundled voice service. Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate Wi-Fi router. Built for ultimate speed: Best for cable provider plans up to 1 gigabit speed.
BrandNETGEAR #ad
ManufacturerNetgear Inc #ad
Height5.9 Inches
Length8.8 Inches
Width5.4 Inches
Part NumberCM1000-1AZNAS
ModelCM1000-1AZNAS
WarrantyLimited (1) Year Warranty

4. NETGEAR

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

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NETGEAR #ad - 0 32x8 channel bonding. 1 up to 10x faster download speeds than docsis 3. Support all cable internet speed tiers, up to Gigabit 1000 Mbps service. 0 networks. System requirements- cable broadband internet service, 2000, otherwise this modem will only work as a docsis 3.

0 modem, mac os, xp, firefox 2.0, please check your cable internet service provider web site for data speed tier compatibility and to ensure it provides DOCSIS 3. 1 service, 8, 10, microsoft Windows 7, Microsoft Internet Explorer 5.00, vista, Safari 1. 4, or other operating systems running a TCP/IP network, or Google Chrome 11. 0 browsers or higher. Docsis 3. Cm1000-1aznas is not compatible with: verizon, AT&T, or CenturyLink. 1 specifications and is backward compatible with DOCSIS 3. 0 Separate router required for Wi-Fi. Docsis 3. Not compatible with cable bundled voice services. Meets docsIS 3.
BrandNETGEAR #ad
ManufacturerNetgear #ad
Height4.53 Inches
Length10.24 Inches
Width7.24 Inches
Part NumberCM1000-1AZNAS
ModelCM1000-100NAS
Warranty90 days limited warranty

5. Motorola

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Approved for Comcast Xfinity Gigabit and More., MOTOROLA MB8611 DOCSIS 3.1 Cable Modem with 2.5G Ethernet

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Motorola #ad - Full-band capture digital tuner enhances speed and saves energy. Active queue management aqm: reduced internet latency for faster page loading and better response time from your interactive applications like online gaming and video conferencing.

Ultra-fast docsis 3. 1 performance - model mb8611 supports the fastest docsis 3. 1 cable modem services available for all multi-gigabit speed tiers, complete with fallback to 32x8 DOCSIS 3. 0 approved by comcast Xfinity for all speeds including Comcast Gigabit services. Flexible connection: a 2. 5g ethernet port to work with even the fastest routers and Personal Computers, providing downstream speeds just below 2, 500 Mbps and upstream speeds up to 800 Mbps when supported by your cable service speed.

Cost-saving solution: owning your own modem typically saves the average home $156 per year in monthly rental charges. Compatibility - plugs easily into any wifi router for shared internet access by all your WiFi and ethernet-capable devices. Savings are shown for Comcast Xfinity and vary by cable service provider. This cable modem does NOT have a built-in wireless router or telephone call capability.
BrandMotorola #ad
ManufacturerMTRLC LLC #ad
Height7.88 Inches
Length7.25 Inches
Width2.25 Inches
Part NumberMB8611-10
ModelMB8611

6. Motorola

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Cox, Model MB7621, Time Warner Cable, and More. Downloads 1,000 Mbps Maximum No WiFi, DOCSIS 3.0. Approved by Comcast Xfinity, Charter Spectrum, Motorola 24x8 Cable Modem

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Motorola #ad - This cable modem's one gigabit ethernet port connects to a wifi router, computer, mg7550, hdtv, or streaming video device. Setup is fast and easy using the quick start guide. Experienced usa-based Motorola customer support specialists are happy to help if you need them.

Wirecutter rates this “the best modem for most people. A full-band capture Digital Tuner ensures faster, more reliable Internet. Eliminate cable modem rental fees up to 156 dollars per year. Model mb7621 has no phone jack. The motorola mg7315, mg7540, and MG7700 have a built-in wireless router. A two-year warranty plus rugged lightning and power surge circuits protect your investment. Great for use with whole home wiFi or Mesh networks like eero, Google WiFi, game station, and Orbi.

Attractive, compact design minimizes shelf space, and extends product life while looking great in any home or office. Requires cable internet service. Approved by and for use with comcast xfinity and xfinity x1, suddenlink, time warner cable, charter spectrum, and other cable service providers. Includes phone and web support by friendly, improves cooling, professional USA-based technical support specialists.
BrandMotorola #ad
ManufacturerMTRLC LLC #ad
Height7.88 Inches
Length7.25 Inches
Width2.25 Inches
Part NumberMB7621-10
ModelMB7621
Warranty2 YEAR MANUFACTURER

7. ARRIS

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ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem, Certified for Xfinity Internet & Voice black

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ARRIS #ad - 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. Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers. Two 1-gigabit ethernet ports and 2 Telephony ports for Xfinity digital voice service. Finity internet service required Does not include Wi-Fi.
BrandARRIS #ad
ManufacturerCommScope #ad
Part NumberT25
ModelT25
Warranty2 Year

8. ARRIS

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ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Dual Band Wi-Fi Router, Spectrum, Xfinity & others black, Approved for Cox

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ARRIS #ad - 3 products in 1: docsis 3 1 cable modem, ac2350 dual band Wi-Fi, 4 port Gigabit Router cable digital voice service not supported. Compatible with major u s cable internet providers including Cox, Verizon, Spectrum, Xfinity & others Cable internet service required Not compatible with ATT, CenturyLink or other DSL or Fiber internet providers.

Wave 2 ac2350 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports. Setup and manage your network with the SURFboard Manager app Add SURFboard skills to your Alexa network for voice management of your Wi-Fi settings. Cable internet service required. 32 downstream x 8 upstream docsis channels, 2 downstream x 2 upstream DOCSIS 3 1 OFDM channels Best for cable internet speed plans up to 4 Gbps.
BrandARRIS #ad
ManufacturerARRIS Solutions #ad
Height9.33 Inches
Length2.87 Inches
Width8 Inches
Part NumberSBG8300
ModelSBG8300
Warranty2 years

9. NETGEAR

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NETGEAR Nighthawk Cable Modem Wi-Fi Router Combo C7000-Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox for Cable Plans Up to 400 Mbps | AC1900 Wi-Fi Speed | DOCSIS 3.0

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NETGEAR #ad - Note: refer to page 102 of user guide for troubleshooting steps. Modem technology: engineered with 24x8 channel bonding and DOCSIS 3. 0 Versatile connections: 4 gigabit ethernet ports and 2 USB ports give you fast wired connections to your computer, game box, printer, storage drive, and other devices.

Modem technology: engineered with 32x8 channel bonding and DOCSIS 3. 1. Built for fast speed: best for cable provider plans up to 400 Mbps speed. Fast wi-fi performance: get up to 1800 square feet wireless coverage and 30 devices connected with AC1900 speed up to 1900 Mbps. Save monthly rental fees: model c7000 replaces your cable modem and Wi-Fi router, saving you up to $168/year in equipment rental fees.
BrandNETGEAR #ad
ManufacturerNetgear Inc #ad
Height1.7 Inches
Length9.6 Inches
Width8.3 Inches
Part NumberC7000-1AZNAS
ModelC7000-1AZNAS
WarrantyLimited (1) Year Warranty