10 Best Comcast Xfinity Approved Modems Which Are Highly Compatible

If you are looking for a Comcast compatible Modem which is the best, then you are in the right place. We know how torturous it is when the internet slows down or even stops working. So, we did our research and made a list of the best cable modem so that it becomes easier for you to select one for yourself.

These cable modems will not only give you incredible speed but will save you money which you can put to better use. As reported by Vox Media, Comcast is basically the largest home internet service provider in the United States. Also, why rent a modem and pay a monthly bill to the operators. Instead, you can just buy a Comcast Modem at a much lower price, serving as a one-time investment with great benefits.

#ImageProduct Name Features Check Price
1NETGEAR CM500-1AZNAS DOCSIS 3.0 Cable Modem

  • Max download speeds of 686Mbps

  • 16 downstream and 4 upstream channels

  • 1 Gigabit Ethernet Port

Check Price
2ARRIS SURFboard SB6183 DOCSIS 3.0

  • Max download speeds of 686Mbps

  • 16 downstream and 4 upstream channels

  • 1 Gigabit Ethernet Port

Check Price
3MOTOROLA MG7550 Cable Modem

  • Max download speeds of 686Mbps

  • 16 downstream and 4 upstream channels

  • 4 Gigabit Ethernet Ports

Check Price
4NETGEAR Nighthawk AC1900 DOCSIS 3.0 WiFi Cable Modem

  • Max download speeds of 960Mbps

  • 24 downstream and 8 upstream channels

  • 4 Gigabit Ethernet Ports

Check Price
5NETGEAR CM600 Cable Modem

  • Max download speeds of 960Mbps

  • 24 downstream and 8 upstream channels

  • 1 Gigabit Ethernet Port

Check Price
6Linksys CG7500 High-Speed DOCSIS 3.0

  • Max download speeds of 1.9Gbps

  • 24 downstream and 8 upstream channels

  • 4 Gigabit Ethernet Ports

Check Price
7MOTOROLA MB8600 DOCSIS 3.1 Cable Modem

  • Max download speeds of 1Gbps

  • 32 downstream and 8 upstream channels

  • 1 Gigabit Ethernet Port

Check Price
8ARRIS SURFboard SB6141 DOCSIS 3.0 Cable Modem

  • Max download speeds of 343Mbps

  • 8 downstream and 4 upstream channels

  • 1 Gigabit Ethernet Port

Check Price
9TP-Link TC-7610

  • Max download speeds of 343Mbps

  • 8 downstream and 4 upstream channels

  • 1 Gigabit Ethernet Port

Check Price
10D-Link DCM-301 DOCSIS 3.0 Cable Modem

  • Max download speeds of 150Mbps

  • 8 downstream and 4 upstream channels

  • 1 Gigabit Ethernet Port

Check Price

So let’s get down to the 10 Best Comcast Compatible Modem for your home and check out their reviews to understand all the features and benefits. Most of the modems mentioned below support DOCSIS 3.0 technology, you can check the Comcast Xfinity compatible DOCSIS 3.1 Modems if it supports the latest DOCSIS 3.1 technology in your area.

1. NETGEAR CM500-1AZNAS DOCSIS 3.0 Cable Modem

NETGEAR CM500-1AZNAS DOCSIS 3.0 Cable Modem
NETGEAR CM500
  • High-speed cable Internet up-to 680Mbps
  • 16 downstream and 4 upstream channels
  • Gigabit Ethernet port with auto-sensing technology
  • Works with any WiFi router
  • Supports Comcast, Spectrum, and Cox

The Netgear CM500 is one of the best cable modems under the budget that you will find among all available in the stores. It is a sleek yet powerful modem. In our research, we had connected multiple devices to it and even though the speed was distributed, every one of those worked perfectly great.

This modem has 16 downstream and 4 upstream channels bandwidth and a maximum speed of up to 680Mbps. You can seamlessly watch multiple high definition videos, movies, download games, movies on PC’s XBOX, etc without any interruption from the network. Just like any other modem, this Netgear modem comes along with an Ethernet cable. This is an ultimate and reliable DOCSIS 3.0 modem which is 16x times faster than its previous versions.

One of the best parts of this modem is how easy it is to set up. Within 5 minutes you are all set to use internet services. Also, it has no built-in wireless or wired router. It is sold separately as just a modem and nothing more. Moreover, an amazing thing about this is it will turn all the weak signals it receives and turn to convert it. Some modems aren’t even able to catch these signals.

 A small issue noted with this is, if you wish to upgrade its firmware it can be only done by your service providers (especially Spectrum). If this is in any way true then it could be troublesome since they would be able to manipulate how my modem works. Let’s hope this isn’t true and as said not all ISP providers have this access.

Yet another problem that has been encountered is the heating problem. If it isn’t placed ina leveled place or in a cool environment, the heating might mess things up. So, it is recommended to keep it away from devices that heat up. Apart from all this, you can go for this modem since it will perfectly fit your budget with features that go perfectly overall.

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Pros
  • High-Speed Cable Internet
  • Affordable
  • Great performance
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Cons
  • Heating Issues
  • 1-year warranty period

2. ARRIS SURFboard SB6183 DOCSIS 3.0

ARRIS SURFboard SB6183 DOCSIS 3.0
ARRIS SURFboard SB6183
  • High-speed cable Internet up-to 686Mbps
  • 16 downstream and 4 upstream channels
  • 1-Gigabit Ethernet Port
  • Supports IPv4 and IPv6
  • Compatible with Comcast, Time Warner, Spectrum and more

The Arris SURFboard cable modem seems to be one of the winners when it comes to speed as well as performance. This DOCSIS 3.0 cable modem provides maximum speed up to 686 Mbps. You can seamlessly watch HD videos and take your gaming experience at the top of the chart.

Most of the Comcast compatible modem that you will find runs on either 8 or 4 downstream channels while regions support 16 downstream channels. But surprisingly this modem supports 16 downstream channels itself meaning cable provider will be able to distribute traffic on other channels. This would result in stable high-speed internet all throughout.

Moreover, the set up of the device is very simple and easy to use. In terms of performance, the modem has been remarkable overall along with the speed. Even if you have taken 100Mbps internet plan, this modem will give 10-20% faster downstream as compared to what you have paid for.

The most important part to be noted is its price range. With such a small amount you are getting tons of features which you will not find in costlier modems in the market. The performance is outstanding and the speed is incredible. There is nothing more one could as for. Also, you get a 2-year warranty for this modem. So, if anything goes wrong with any of its part you can get it replaced or get it repaired. Earlier you were bound to pay a hefty sum of money to rent these, and for less than half the price now you are able to get the most incredible innovation.

Some disadvantages that it comes up which is the LED lights that are too bright to be looked at. It becomes really difficult to and hurts the eye. Not only this, there were some complaints about the device heating up. And unfortunately, this doesn’t have any power button to switch it off. It can only happen if you unplug the modem.

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Pros
  • High-Speed Streaming
  • Very cheap
  • 2-year warranty
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Cons
  • Heating Issues
  • LED lights too bright
  • Coaxial connection too close

3. MOTOROLA MG7550 Cable Modem

MOTOROLA MG7550 Cable Modem
MOTOROLA MG7550
  1. High-speed cable Internet up-to 686Mbps
  2. 16 downstream and 4 upstream channels
  3. 4-Gigabit Ethernet Port
  4. Supports IPv4 and IPv6
  5. Compatible with Comcast Xfinity, Cox, Charter Spectrum and more

The Motorola MG7550 cable modem combines a 16 downstream and 4 upstream channels with an AC1900 gigabit router. This will not only save money but also you will be free from buying an additional router. It supports Internet service providers such as Comcast Xfinity, Cox and many more. Moreover, if you are planning to get a speed limit of 250Mbps or 300Mpbs it will work like a beast. 

Since it runs on the upgraded DOCSIS 3.0 which is 16 times faster than DOCSIS 2.0. Also, this modem is compatible with DOCSIS 3.0, 2.0 and 1.1 as well. Now moving on to the built-n gigabit wifi router, it features 4-Gigabit Ethernet ports for computers, gaming consoles, and other devices that support ethernet. Not only this, it works on Wifi DFS frequencies which makes it less vulnerable to interference with other networks nearby.

On the front panel, it has 7 LED lights that report the status of the connection. Unlike other modems, this has been given a 2-year warranty period which is a great addition to keep the user satisfied. On the back panel, we have 4 ethernet ports, WLAN and WPS buttons, one reset pin option, one coaxial cable connection that sends data to the modem, a push button to switch on/off the modem and a power source cable input to provide power supply to the modem. Moreover, not every modem provides Parental Control capabilities as this which is a great addition.

There have been some reported issues with the modem related to security. The ISP provider can change your password from their end since they have been given access to the firmware. This could be a huge downfall if it keeps happening since one would not want personal security to be handled in this manner.

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Pros
  • Great performance and speed
  • Built-in wifi router
  • 4-Gigabit Ethernet ports
  • Simple setup
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Cons
  • Issues with the wireless range
  • Security Issues

4. NETGEAR Nighthawk AC1900 DOCSIS 3.0 WiFi Cable Modem

NETGEAR Nighthawk AC1900 DOCSIS 3.0 WiFi Cable Modem
NETGEAR Nighthawk AC1900
  • High-speed cable Internet up-to 960Mbps
  • 24 downstream and 8 upstream channels
  • 4-Gigabit Ethernet Port
  • Simultaneous Dual-Band WiFi 2.4 & 5GHz
  • Compatible with Comcast, Cox, Spectrum and more

The Netgear AC1900 is one of the best 2-in-1 cable modems and router combo you will find the market. With a speed of up to 960Mbps, you can enjoy high-quality video streaming and uninterrupted downloads. 

Moreover, unlike any other router available it has 24 downstream and 8 upstream channel bonding and providing speed for plan up to 500 Mbps. The DOCSIS 3.0 has a 24 times faster speed than its previous 2.0 version. Also, when it comes to playing games and streaming video, it features a powerful 1.6GHz processor. The biggest advantage of having 24 downstream channels is that internet traffic would be divided into these channels and provide better speed even during peak hours.

In terms of security, this modem provides a customized URL to set your own personal FTP for free. Not only this, just like any other wifi it provides guest network access both as separate and secure connections depending on the usage. Other features include double firewall protection which is SPI and NAT. Also, you are protected from the DOS i.e. Denial of Service attack which is great seeing the security issues with other modems.

Netgear has introduced an application named as a genie app through which you can run your network on the smartphone. This Gigabit wired modem provides 10 times faster speed to your gaming consoles and PC’s other than any standard modem. 

The system requirements for this modem is as follows: Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, UNIX, or Linux, Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher. Also, it provides an only 1-year warranty which is a bit let down yet again like many other modems. But seeing the wide range of various other features you can surely go for it since it doesn’t cost much as you are getting both modem and router at this price.

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Pros
  • Powerful processor
  • Built-in router
  • 24-downstream channels
  • Parental control and Guest Network
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Cons
  • Limited Warranty
  • Poor Customer service

5. NETGEAR CM600 Cable Modem 

NETGEAR CM600 Cable Modem
NETGEAR CM600
  • High-speed cable Internet up-to 960Mbps
  • 24 downstream and 8 upstream channels
  • 1-Gigabit Ethernet Port
  • 8 MB NOR flash and 128 MB RAM
  • Compatible with Comcast, Cox, Spectrum and more

The Netgear CM600 is one of the best modems under budget available on various platforms and stores. If you were looking for a low price range modem then this could be the perfect option.

This modem is compatible with some of the major internet providers such as Comcast, Cox Spectrum, etc. Moreover, it will save a lot of your money up to $150/yr on the rental fees and other equipment. If you have taken 100-300Mbps internet plan for your home, this could be the best option since it provides plans up to 400Mbps speed. 

The modem has been designed to meet the DOCSIS 3.0 specification which is 24 times faster than 2.0. Although, it is not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH, and any bundled voice services. So if you have been thinking to opt for these services you will need to select something else.

In the back panel, it has a 1-Gigabit Ethernet port for your PC’s or gaming console. Not having multiple ports is a big disadvantage as one would love to have their gaming console as well as PC’s connected to the wired connection for better speed. Below that is a reset pin option to reset the entire router if needed. Next to it is the Coaxial cable connection that sends data to the modem. Below all of these, there is a powerpoint ‘given for power supply to the modem and also an on/off push button.

With a very simple installation process and easy setup, you can start using the internet very quickly. It has a 1-year warranty that has been given to this device as well. But apart from all these features a set back is that it is a little bit tall and bulky looking. This device has got really good responses from the users and works for the long term as compared to other modems.

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Pros
  • Great performance
  • Very cheap and affordable
  • Simple to use and setup
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Cons
  • Only limited warranty of 1-year
  • Bulky and tall

6. Linksys CG7500 High-Speed DOCSIS 3.0

Linksys CG7500 High-Speed DOCSIS 3.0
Linksys CG7500
  • High-speed cable Internet up to 1.9Gbps
  • 24 downstream and 8 upstream channels
  • 4-Gigabit Ethernet Port
  • Intel Puma 6 chipset
  • Compatible with Comcast, Spectrum, and Xfinity

The Linksys CG7500 is one of the best modem routers with the maximum speed that can go up to 1.9Gbps. Sound amazing right? This is something you will not find in most of the routers. Moreover, with 24 downstream and 8 upstream channels, you will receive the perfect speed you need for all your connections.

Linksys uses DOCSIS 3.0 which is 24 times faster than the previous version. Though it supports DOCSIS 3.0, 2.0 and 1.1 cable standards. Talking about the design of this modem, it looks absolutely stunning and more of a fantasy building-like structure. Once you look at it you will fall in love with it. 

On the back panel, we have 4 Ethernet ports where you can connect your PCs, gaming consoles, computer systems, and other devices. Having multiple ports brings a huge advantage for all purposes. Just above that, there is a USB 2.0 port. Below the Ethernet ports, you get the coaxial cable connection that transfers data to the modem. Lastly, the power source point is provided to input power into the modem.

On the front panel, the LEDs indicate the status of the modem and the internet connection. This includes power, Upstream, downstream, status, and link indication on the panel through LED lights.

To achieve greater performance and speed, CG7500 uses Intel Puma 6 Chipset. This chipset will provide better data offering for a longer period of time since the needs for better speed and services has become advanced and continues to do so further. Also, there are 3 x 3 AC WiFi, the built-in router broadcasts data stream so that you get ultra-fast speed. The warranty period has been set up for only 1-year and 90-day complimentary assisted technical support.

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Pros
  • Ultra-Fast Internet speed
  • Multiple Ethernet ports
  • Runs on Intel Puma 6 chipset
  • Great Performance
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Cons
  • Little expensive as compared to other modems
  • Not the best option for a large number of users

7. MOTOROLA MB8600 DOCSIS 3.1 Cable Modem

MOTOROLA MB8600 DOCSIS 3.1 Cable Modem
MOTOROLA MB8600
  • High-speed cable Internet up to 1Gbps
  • 32 downstream and 8 upstream channels
  • 1-Gigabit Ethernet Port
  • Support DOCSIS 3.1
  • Compatible with Comcast Xfinity, Cox, and CableOne

The Motorola MB8600 is the most incredible modem that comes with a maximum speed of 1Gbps. The speed is on top of the charts and performance is even much better. And has an upstream speed of 3.8Gbps.

Not only this, it runs on DOCSIS 3.1 which is the newest version and 46 times faster than 2.0. But there is a catch here. Not many modems have been upgraded to this and the service providers as well. So if you are in the area that supports DOCSIS 3.0 it might lose some speed whereas if you are in the area that supports DOCSIS 3.1 your speed will regain its momentum.

It supports 1 open and 3 masked ethernet ports on the back panel. These ports can connect any of your devices such as multiple PCs, gaming consoles, systems, etc. Since it has no built-in router, you can use any router for this. If you are into Netflix, gaming, or other streaming sites, you can watch it without any interruption with HD-quality resolution. The modem is pretty handy and very easy to set up. 

It will typically save around $120 per year on your rental fees or even more depending on the cable service provider you choose. Saving this money you can spend on this modem for at least 2-years worry-free and excellent customer support. They have introduced AQM i.e. Active Queue Management that simply reduces internet latency. AQM results in faster page loads for all Web traffic and greatly enhances interactive applications like online gaming and video conferencing, etc. 

The main disadvantage it can suffer over the period of time would be that users might not be able to use this modem’s full potential. Since the ISP’s aren’t planning to upgrade themselves for DOCSIS 3.1, so until then users will have to use the DOCSIS 3.0. By the time they upgrade, the hardware would be cheaper.

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Pros
  • Multiple Ethernet Ports
  • High Downstream speed
  • Support DOCSIS 3.1
  • 2-year warranty
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Cons
  • Not all ISP’s support DOCSIS 3.1
  • Reported Disconnection Issues

8. ARRIS SURFboard SB6141 DOCSIS 3.0 Cable Modem

ARRIS SURFboard SB6141 DOCSIS 3.0 Cable Modem
ARRIS SURFboard SB6141
  • High-speed cable Internet up to 131Mbps
  • 8 downstream and 4 upstream channels
  • 1-Gigabit Ethernet Port
  • Supports IPv4 and IPv6
  • Compatible with Comcast Xfinity, Cox, and CableOne

The Arris SURFboard SB6141 is yet another modem that fits well within your budget. But we need to see if it has the features we have been looking for. 

With the maximum downloading speed of only 343 Mbps, it is a great number no doubt but as compared with other modems the number stands out to be a bit less. Furthermore, there are only 8 upstream channels. This means the traffic would be divided over only 8 channels as compared to other modems which have 16 and even 32 channels. So, this might happen that the speed you receive might not be enough.

This modem might work perfectly for low bandwidth homes with a lesser number of users. Also, it is super easy to set up and very easy to operate. The design is also pretty simple and understandable. On the back panel, we have 1 Ethernet port, a coaxial cable connection that sends data to the modem and lastly at the bottom is the power supply port. It looks pretty small and very easy to hold since it weighs only 1.05 pounds.

Through this purchase, you will save a decent amount of money on the rent that you would have spent for years. Moreover, it has a 2-year warranty period so this could be a good investment. Surely, not one of those premium products but an average product if you are okay to settle for less with low budget issues.

There are certain disadvantages that you cannot ignore. It doesn’t have any rest option on the back panel, like any other modem would generally have, so now you need to manually unplug the device and reset it. Also, we noticed that it takes about 35 secs to go from boot mode to browsing mode. It is a huge setback since modems are all about speed.

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Pros
  • 2-year warranty
  • Easy to set up
  • Very lightweight
  • Affordable
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Cons
  • Low Internet Speed
  • Single Ethernet Port
  • No reset option
TP-Link TC-7610
TP-Link TC-7610
  • High-speed cable Internet up to 143Mbps
  • 8 downstream and 4 upstream channels
  • 1-Gigabit Ethernet Port
  • IPv4 and IPv6 dual-stack
  • Compatible with Comcast Xfinity, Cox, and CableOne

The TP-LINK TC-7610 is the cheapest modem that could be found in the market. With a maximum speed of only 143 Mbps, you can enjoy an average internet speed. If you are using it for lower bandwidths and for a limited number of users, this would work perfectly well. This modem isn’t made for heavy traffic management but an average use every day should do the work. 

On the back panel, it has one reset pin on the top. Followed by that, there is one single Ethernet port for you to connect to your PC’s or Gaming Console or any other device that has an Ethernet port as well. Below that the coaxial cable connection is present that sends the data to the modem. And lastly, the power supply port that provides power to the modem. On the front panel, there are multiple LED options are indicated to show the status of the modem and connection.

It has very simple yet has a classy look to it. Not to forget it is very easy to set up at home. Also, it has no built-in router so you will need a good router to connect it with the modem for better speed and performance. This modem is going to save a lot of money. Not only you will no longer have to pay the rental fees, in fact, the cost of this is also far less than the rental fees.

The CableLabs-certified DOCSIS 3.0 technology is 8 times faster than the 2.0 version. The 8 channel upstream runs at a speed of 143Mbps and the downstream speed is 343Mbps. These have a very average speed as compared to costlier modems out there with better features.

Some additional technical specifications are as follows, it supports IPv4 and IPv6 dual-stack connections, Supports IGMP v1/v2/v3, and is compatible with Windows 8/Windows 7/ Windows Vista, Service Pack 1 or later/ WindowsXP, Service Pack 2 or later/ Mac 10.4 or later (Ethernet Connection Only) UNIX Linux.

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Pros
  • Saves rental fees
  • Simple and sleek design
  • Super lightweight
  • Average speed
  • Cheap
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Cons
  • Lesser number of channels
  • Low performance
  • Not for large traffic and users
  • No multiple Ethernet ports provided
D-Link DCM-301 DOCSIS 3.0 Cable Modem
D-Link DCM-301
  • High-speed cable Internet up to 150Mbps
  • 8 downstream and 4 upstream channels
  • 1-Gigabit Ethernet Port
  • SNMPv3 remote network management
  • Compatible with Comcast Xfinity, Cox, and CableOne

The D-LINK DCM-301 is one of the best options for you at a low budget, compatible with small businesses and homes. Also, this is just a cable modem and no built-in router is provided so that needs to be bought separately. 

It is powered by DOCSIS 3.0 which is 8 times faster than any 2.0 version available. This makes it even easier to download large videos and games, stream HD videos and watch movies. Everything can be done at a great speed and seamless streaming. The device is also compatible with DOCSIS 2.0, 1.1 and 1.0 standards. 

On the back panel, there is a single Ethernet that is present in which you can connect with your system, Gaming console or your PC. Furthermore, it has a reset pin next to the Ethernet port. Followed by this we have the coaxial cable connection which is given by the Internet Service Providers, one power supply port to give power to the modem and a small push-button for on/off of the Modem. As seen in other Modem, it is compatible with various ISPs such as Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and many more. 

On the front panel, the LED indicates the following things such as power, downstream, upstream, Channel bonding, online, and LAN status to the users. The modem provides a maximum speed of 343Mbps download stream whereas the max speed of 150Mbps upload stream that gives 8 x 4 channel bonding. Also, you will be saving a good amount of money such as $96 per year which would otherwise have been spent on rent fees.

The device is an average product for lower bandwidths and traffic. So if you have a low budget you can go fort this Cable Modem since it will give you a decent speed at this price and with lesser traffic it will work better than most modems.

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Pros
  • Very easy to set-up
  • Support DOCSIS 3.0
  • Remote network management
  • Compatible with multiple ISP’s
  • Affordable
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Cons
  • Lower Upload speed
  • Average performance
  • No multiple Ethernet ports

Verdict

So, we have listed down the 10 Best Comcast Compatible modems. Some are affordable, cheap but with lesser features, whereas some are the best in speed and performance but a little out of the budget. If you believe you can put some extra money then you can select the best from among them.

If you still aren’t satisfied with the above modems or already own a different modem then you shall consider checking out MyDevices by Xfinity which allows you to choose other models which are compatible with Comcast.

There are 100’s of options available which might suit you better, but we are not sure about its durability. So we tested out this limited number of products and came up with the best so that it is easier for you to select from among them.

Many modems have built-in routers which are a great option to go for since at just a small cost you can get 2-in-1 functionality This will lead to lesser use of wires and better performance. Also, the setup will take very little time since you need to put up a single box rather than two. Furthermore, the whole setup will take even less space overall.

If you have any further queries you can simply contact the respective companies and understand more about the product. Also, if you have any other difficulty, do not hesitate to tell us so that other users can fix these problems as well. 

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