Crucial Things You Need to Know about Best Xfinity Modem 2018 Ultimate Buying Guide and Reviews

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Best Xfinity Modem
The list of the best xfinity modem available on this page was made with the marketplace. It is a great website for those who want to receive feedback from real customers of various products. Using it, you can easily find the best xfinity modem on the market.

Our team conducted a thorough research and compared dozens of models in order to find the very best xfinity modem on the market. Read our work below to choose the right xfinity modem out of our TOP selection.

These Are The 10 Best Xfinity Modem of 2018

Rating Image Name and Features Details
5.0
NETGEAR CM500-1AZNAS 1. NETGEAR CM500-1AZNAS (Editor’s Choice)
Support cable internet service plans up to 200 mbps.
Read reviews
4.5
Arris Surfboard Sb6183 Modem 2. Arris Surfboard Sb6183 Modem (Best to Use Right Away)
Verizon, at&t, or centurylink.
Read reviews
4.5
Netgear Gigabit Cable Modem 3. Netgear Gigabit Cable Modem
Docsis 3.1 up to 10x faster download speeds than docsis 3.0.
Read reviews
4.3
Motorola 8x4 Cable Modem 4. Motorola 8×4 Cable Modem
Requires cable internet service.
Read reviews
3.8
Motorola 16x4 Cable Modem 5. Motorola 16×4 Cable Modem
Cable modem’s ethernet port connects to a computer, hdtv, game station, or wireless router.
Read reviews
3.8
Motorola 24x8 Cable Modem 6. Motorola 24×8 Cable Modem
This cable modem’s one gigabit ethernet port connects to a wifi router, computer, hdtv, game station, or streaming video device.
Read reviews
3.3
NETGEAR CM600 7. NETGEAR CM600 (Excellent Warranty Policies)
Docsis 3.0 up to 24x faster download speeds than docsis 2.0.
Read reviews
3.3
Arris Surfboard Docsis 8x4 Cable Modem 8. Arris Surfboard Docsis 8×4 Cable Modem
This device does not support xfinity home security or home control service without also having an xfinity home router from comcast.
Read reviews
3.3
Arris Surfboard Sb6141-rb 8x4 Docsis 3.0 Cable Modem 9. Arris Surfboard Sb6141-rb 8×4 Docsis 3.0 Cable Modem
Wired modem only.
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3.3
TP-Link TC7650 DOCSIS 3.0 10. TP-Link TC7650 DOCSIS 3.0
You will also need a router to enable wi-fi.
Read reviews

 

 

 
№ 1. NETGEAR CM500-1AZNAS (16x Docsis 3.0 Cable Modem, Max Download Speeds of 686mbps, Certified for Xfinity From Comcast, Spectrum, Cox, Cablevision and More

Not compatible with: verizon, at&t, or centurylink. Not compatible with bundled voice services. Docsis 3.0 up to 16x 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. System requirements: microsoft internet explorer 5.0, firefox 2.0, safari 1.4, or google chrome 11.0 browsers or higher. Support cable internet service plans up to 200 mbps. Separate router required for wi-fi. “the best cable modem” – the wirecutter, aug 2017.

 

 
GOOD
Docsis 3.0 up
Eliminate monthly cable modem rental fees
“the best cable modem”
Support cable internet service plans up
Not compatible with
BAD
I have not had any problems.
 

 

 
№ 2. Arris Surfboard Sb6183 Modem 16×4 Docsis 3.0 Cable Modem- Retail Packaging- White

Internet speeds up to 686 mbps download and 131 mbps upload based on your cable isp subscription. Gigabit ethernet port to connect to computer or router. Ideal for streaming hd video and gaming on multiple devices at a time. Approved with comcast xfinity, spectrum (charter, time warner, brighthouse), cox and more. If not sure call your cable provider to find out if approved to use. Requires cable internet service. Cable modem only (no wifi router). 16 download & 4 upload channels. Not compatible with: verizon, at&t, or centurylink. Supports ipv4 and ipv6 the latest internet standard.

 

 
GOOD
2 year warranty
Cable modem only
Internet speeds up
Not compatible with
BAD
You will not be able to take it on a plane.
 

What factors did you consider to make the list of the best xfinity modem?

Our team compared many products from various brands to find the TOP of the best xfinity modem. It was hard because new xfinity modem are released every year. However, we have managed to do this and made the TOP list, based on such factors as the price, materials, weight, and other details.

 

 
№ 3. Netgear Gigabit Cable Modem 32×8 Docsis 3.1 Max Speed 6 Gbps, for Xfinity By Comcast and Cox. Compatible with Gig-speed From Xfinity (cm1000-1aznas)

Eliminate monthly cable modem rental fees – up to 120 per year. Docsis 3.1 up to 10x faster download speeds than docsis 3.0. Docsis 3.1 is ofdm 2×2+ docsis 3.0 32×8 channel bonding. Support all cable internet speed tiers, up to gigabit (1000 mbps) service. Separate router required for wi-fi. Not compatible with: verizon, at&t, or centurylink. Not compatible with bundled voice services. Compatible with xfinity from comcast, cox, mediacom cable, and more.

 

 
GOOD
Docsis 3.1 up
Eliminate monthly cable modem rental fees
Not compatible with
Support all cable internet speed tiers
BAD
Lacks versatility.
 

How to find out whether I am buying a decent xfinity modem?

We recommend you to visit marketplace. It offers dozens of convenient features that will help you to choose a xfinity modem. Moreover, you will find thousands of reviews from other people who have actually bought xfinity modem on this website. Always read them before making a decision!

 

 
№ 4. Motorola 8×4 Cable Modem Gateway + Wifi N450 Gige Router with Power Boost, Model Mg7315, 343 Mbps Docsis 3.0, Certified By Comcast Xfinity, Charter Spectrum, Time Warner, Brighthouse, Cox and More

Built-in high-speed wifi router with n450 wi-fi and power boost provides internet access for wifi devices including smartphones, notebooks, tablets, game stations, hdtvs, amazon echo, google home, chromecast, roku, amazon fire tv, and appletv. Four 10/100/1000 gigabit ethernet lan ports provide wired connections to windows and mac computers, hdtvs, game stations, streaming tv devices, and other ethernet-capable devices. Integrating the cable modem and router creates a more reliable connection that reduces unwieldy wiring and power adapter clutter while conserving desk space. The vertical design further minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. 8×4 docsis 3.0 cable modem plus a built-in n450 single band (2.4 ghz) wi-fi gigabit router with four gigabit (gige) ethernet ports, a firewall, and more. This product is recommended for actual cable internet service speeds up to 145 mbps. A broadcom cable modem chipset provides security from denial of service attacks. Requires cable internet service. Approved by comcast xfinity, cox, charter spectrum, timer warner cable, brighthouse, wow, cableone, rcn, mediacom and other cable service providers for use in modem ownership programs that save rental fees up to 132 per year. (savings are shown for comcast 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.

Wireless power boost 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 beamforming focuses the signal on wireless clients to further enhance performance and range.

 

 
GOOD
8×4 docsis 3.0 cable modem plus a built-in n450 single b
Requires cable internet service
Built-in high-speed wifi router
BAD
The assembling quality is on top, but materials are not the best.
 

What is the minimum allowable warranty period for a xfinity modem?

Usually, the two-year long warranty period is more than enough for a good xfinity modem. Even the best xfinity modem lose their quality with time. We think that replacing them with a new product is much better than paying extra money for the lifetime warranty.

 

 
№ 5. 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

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. 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 or more per year. 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.

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. Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment.

 

 
GOOD
Requires cable internet service
Cable modem’s ethernet port connects
Setup is fast
This 16×4 docsis 3.0 cable modem provides speeds up
BAD
Use this product with a protective cover unless you want to break it.
 

 

 
№ 6. Motorola 24×8 Cable Modem, Model Mb7621, Docsis 3.0. Approved By Comcast Xfinity, Cox, Charter Spectrum, Time Warner Cable, and More. Downloads 1, 000 Mbps Maximum (no Wifi)

This cable modem’s one 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 mg7310, mg7315, mg7550, and mg7700 have a built-in wireless router. Requires cable internet service. Approved by comcast xfinity, cox, charter spectrum, time warner cable, brighthouse, cableone, suddenlink, rcn, and other leading cable service providers for modem ownership programs that save rental charges up to 132 per year. (savings are shown for comcast 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. Recommended for actual cable internet service speeds up to 650 mbps. A full-band capture digital tuner ensures faster, more reliable internet. Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A two-year warranty plus rugged lightning and power surge protection circuits guard your investment.

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. Support is in english or spanish.

 

 
GOOD
Requires cable internet service
Setup is fast
This cable modem’s one gigabit ethernet port connects
BAD
It gets dirty very fast.
 

 

 
№ 7. NETGEAR CM600 (24×8) Docsis 3.0 Cable Modem. Max Download Speeds of 960mbps. for Xfinity By Comcast, Time Warner Cable, Cox, Charter and More (cm600-1aznas)

Eliminate monthly cable modem rental fees – up to 120 per year. Support cable internet service plans up to 300mbps. Separate router required for wifi. Not compatible with: verizon, at&t, or centurylink. Not compatible with bundled voice services. Docsis 3.0 up to 24x faster download speeds than docsis 2.0. One gigabit ethernet port with auto-sensing technology. Compatible with xfinity from comcast, spectrum, cox, cableone & more. Microsoft internet explorer 5.0, firefox 2.0, safari 1.4 or google chrome 11.0 browsers or higher.

 

 
GOOD
Docsis 3.0 up
Support cable internet service plans up
Not compatible with
Eliminate monthly cable modem rental fees
BAD
Looks awful.
 

 

 
№ 8. Arris Surfboard Docsis 8×4 Cable Modem Telephone N300 Router Certified for Xfinity, Download Speed: 343 Mbps (tg862r)

3 products-in-1: cable modem + wi-fi router + xfinity telephony. 2.4 ghz n300 router good for moderate population applications less than 2000 sq., can be disabled if needed to use another router. 2 telephony (voip) ports and 4 gigabit ethernet ports. Optional battery backup (sold separately) for placing and receiving voice calls during power outages. This device does not support xfinity home security or home control service without also having an xfinity home router from comcast. 8 download and 4 upload channels best for internet plans up to 100 mbps. Xfinity cable internet service is required to use this product.

Certified for use with comcast xfinity internet & voice service.

 

 
GOOD
3 products-in-1
2 telephony
BAD
The instruction manual has many mistakes.
 

 

 

Supports both ipv4 and ipv6, the latest standard. 8 download channels and 4 upload channels capable of up to 343 mbps download and 131 upload speeds. Recommended for internet plans up to 100 mbps. Does not include wifi router or voip telephone adapter. Gigabit etherent port to connect to pc or router. Arris certified refurbished products will always be branded arris, never motorola. If you get motorola branded product they are illegitimate, need to be returned to seller and reported to amazon. Approved on comcast xfinity, spectrum (charter, time warner, brighthouse networks), cox, mediacom, suddenlink and most other USA cable internet providers. Not compatible with verizon, at&t or centurylink.

 

 
GOOD
8 download channels
90 day warranty
Wired modem only
Supports both ipv4
Approved on comcast xfinity
BAD
Comes only in one size.
 

 

 
№ 10. TP-Link TC7650 DOCSIS 3.0 (24×8) High Speed Cable Modem. Max Download Speeds Up to 1000mbps. Certified for Comcast Xfinity, Spectrum, Cox, and More.

Eliminate rental fee: eliminate your cable modem monthly rental fee – up to 120 per year. Dual-core processor: fast 1.0ghz dual-core processor creates smoother connections while streaming and downloading large files. Cable modem only: you will also need a router to enable wi-fi. Lightning fast speed: channel bonding of up to 24 downstream and 8 upstream channels; best for watching 4k movies and online gaming. Industry leading support: 2-year warranty and free 24/7 technical support; j. Power ranked tp-link “highest in customer satisfaction for wireless routers in 2017”; great for cable internet plans 500mbps and above with xfinity from comcast, spectrum (including charter, time warner cable, and bright house networks), suddenlink, mediacom, and wow.

 

 
GOOD
Eliminate rental fee
Lightning fast speed
Cable modem only
Dual-core processor
Industry leading support
BAD
Use this product with a protective cover unless you want to break it.
 

Is not buying xfinity modem online very dangerous?

The marketplace considered as one of the most reliable online store. Every xfinity modem on the website has detailed descriptions. Moreover, marketplace offers a money back guarantee if you get a wrong or malfunctioning item. You have no reasons to worry.

How many years should last the warranty period for a xfinity modem?

You should consider a xfinity modem with a good warranty period to protect yourself from defective products. Purchase from trustworthy dealers with a high rating if you do not want to have any problems with your xfinity modem. Most of the manufacturers offer at least a two-year warranty.

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My name is Jimmie Henderson and I am a Assembly Operative. I graduated from Duquesne University - Pittsburgh, Pennsylvania

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jimmie@kingbrion.com
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