How to Choose Best Cable Modem for Comcast

Most computer users know what a modem is. The device receives internet packages from a service provider and avails them for use by your computer. Most modems require a SIM card from a carrier company of your choice. However, today you can have a direct connection via cable from your service provider. The best cable modem for Comcast has high connection speed and large coverage.

The cables allow movement of signals from your service providers to your house or office modem. The coaxial cable from the modem links to the optic cable from the service provider. For the data signals to travel from the server to the modem, they travel by total internal refraction within the optical fibers. The fibers may be either glass or plastic, which is highly sensitive.

Comcast is popular in the USA for offering cable connection to modems. Their internet connection is normally cheap and suitable for low-income consumers. The company recently announced that it would be offering a high-speed internet connection for $9.95 per month. Comcast Xfinity cable for low income families is affordable and sustainable. Moreover, beneficiaries can purchase a computer with less than $150 from Comcast.

How Does a Cable Modem Work?

modem router combo for Xfinity

After receiving internet packages from the service provider, the next thing for the machine is to make the internet available for use. First, you can connect the modem directly to your computer using the USB 2.0 and surf the internet. Again, some modems are two in one. It means that they can work as a modem or a router. We call such machines Combo modem routers since they can do two tasks concurrently.

A combo modem router, first, receives the internet using the modem, and then the router picks the signals and broadcasts them using the WiFi technology. The WiFi signals are available wirelessly to smartphones, tablets, laptops and other WiFi-enabled devices. If you have been wondering how to get internet without cable or phone, for your laptop or tablet, then now you have the answer with you.

Routers differ from one another according to the strength and coverage area. Combo modem routers with many antennas have strong signals and probably large coverage area. When looking for cable for low-income families, you should buy Combo modem routers with large coverage area so that you can avail the internet as WiFi to many family members.

The best modem router combo for Xfinity must have extensive coverage and strong signals. Now that you have learnt what a modem and modem router is, let me take you through the best seven cable modems for Comcast. I have done a careful selection to help you solve your dilemma on which device is best for you.

Read More: Netgear c7000 vs c6300. The Netgear c7000 and c6300 are both great routers, but how do they compare? We did the research to make the decision easy!

What are the 7 Best Cable Modems for Comcast?

1. ARRIS SURFboard Docsis 3.1

ARRIS Surfboard SVG2482AC

ARRIS SURFboard Docsis 3.1 has two Ethernets. You can connect two computers using Ethernet cables and browse the internet. It can connect a maximum of two computers simultaneously.

Moreover, the device is appropriate for Cox, Xfinity, and Spectrum. However, it is not compatible with bundled voice services like Verizon and AT&T. Besides, it has fast speeds suitable for online HD gaming, 4K video watching, online movie streaming and downloading of large files.

Again, the device has a warranty so that you can return it for replacement or refund if it becomes unreliable. To benefit from the warranty, do not open the device itself.

  • Fast internet connections
  • It is easy to set up
  • Compatible with several cable internet providers
  • It helps you to download large files
  • It is Suitable for online gaming
  • Does not support bundled services
TP-Link AC1750 Dual Band DOCSIS 3.0

The device has a high internet speed of up to 1750Mbps. With such a speed, you can download large files, stream online music, online games and videos. Moreover, such WiFi speed is suitable for video conferencing.

Again, the device has a dual-band. it has 2.4 GHz band that delivers up to 450 Mbps while the 5 GHz band gives you 1300 Mbps. Both bands have astonishing speeds for downloads and uploads.

It has four Ethernet ports whereby you can connect to four computers. You can also extend the Connection using the WiFi router. Remember the device is a two in one in that it is a modem and a router. It has six antennas for strong network connections.

  • Has dual-band
  • Fast connection speeds
  • Four Ethernet ports
  • Two connection options
  • 6 antennas
  • Shape not attractive

3. NETGEAR Cable Modem CM500

NETGEAR Cable Modem CM500

It is compatible with all internet providers such as Xfinity and Spectrum. It is thus economical to buy since you will not have the challenges of switching internet server.

The cable plans can deliver up to 300Mbps. The speed is good for browsing, video chatting, as well as other online activities that require-speed internet. The machine has one Ethernet port. It means that it can only connect a single computer.

The product is light and easy to transport. It weighs 1.46 ounces. Moreover, it connects to any WiFi router. It thus makes it advantageous to buy over the others. The design of the machine is very attractive to the eyes at first sight.

  • It has high-speed internet
  • It connects to any router
  • It is easy to install
  • Has elegant design
  • Light and easy to carry around
  • Has only one Ethernet port

4. MOTOROLA MG7315 8×4 Cable Modem

Motorola MG7700

The device has a single band for signal transmissions. It has a power boost that ensures that WiFi signals cover an extensive area. It is compatible with Comcast Xfinity, Cox, charter, and Spectrum. It has a high internet connection speed of 343Mbps. It has an inbuilt single band of 2.4 GHz.

You can integrate the cable modem with a WiFi router to increase the number of devices you can connect. It means that you can connect to smartphones, tablets, and laptops among others.

Moreover, the vertical shape of the device makes it occupy a small space of your table. Again, it helps the device to have excellent cooling capability thus increasing the life of the machine.

  • Fast internet connection
  • The vertical design saves space
  • Excellent cooling system
  • Compatible with any router
  • Easy to set up
  • It has a single band



The device has a dual-band. It has a 2.4 GHz and a 5 GHz bands. Again, it is a two in one Gadget in that; it has a modem and a router under the same housing. The router picks signals from the modem and broadcasts them as WiFi.

When buying, note that the device is not compatible with Verizon, Century Link, and other bundled voice services. It means that you cannot make a call using the device.

The device’s built-in WiFi has high speeds of AC1600 suitable for online streaming of HD games, movie downloads, online TV streaming among others. To connect to desktop computers you can use the Ethernet cables or maybe utilize wireless internet adapter.

  • Fast internet connections
  • It has two bands
  • It has a modem and router
  • Easy to set up
  • It occupies little table space
  • Not compatible with Verizon

6. NETGEAR DOCSIS 3.1 Gigabit Cable Modem

NETGEAR Nighthawk CM1150V

It can support cable internet of speeds of up to 1000 Mbps. However, you require a separate router for WiFi. Again, note that the device does not work with bundled voice services. However, note that the device is compatible with Xfinity from Comcast, Mediacom Cable, and Cox.

With this device, you can eliminate modem-lending costs up to $120 per year. It helps you make a great saving for other necessary expenditures.

To avoid doubt when buying, you can speak to Amazon associate for information on whether the device is compatible with your service provider or not. It can be very embarrassing to buy this device only to discover that it cannot work with your local network provider.

  • Easy to use
  • Fast internet connection
  • Eliminates modem lending fees
  • Ready customer service
  • Has elegant design
  • Does not support bundled voice services

7. ARRIS Surfboard (24×8) Docsis 3.0

ARRIS Surfboard (24×8) Docsis 3.0

The device is a two in one. It has a modem and a router integrated to make everything easy for you. You can use the router to create WiFi connections for smartphones, tablets, laptops and other devices that support WiFi.

The device works with Comcast Xfinity only. It means that it cannot work with other network providers. Again, it is not compatible with Xfinity Gigabit speed internet plans. It is a very important point to note to avoid embarrassment.

The device has a two-year warranty. You have enough time to test its viability and return if it malfunctions. The device’s warranty is only valid if you do not interfere with it.

Read More: Technicolor c2100t Review. We put this modem under the microscope and here are its advantages and disadvantages!

  • Two-year warranty
  • High internet speeds
  • Has both modem and router
  • Elegant design
  • Occupies small space
  • Not compatible with Xfinity Gigabit

Bottom Line

Having the best cable modem for Comcast can enhance your internet experience in a big way. If you rely on the internet for your day-to-day activities, then you need a strong modem router. It means that you can connect several devices either wirelessly or via the Ethernet.

Cyber-cafés and big offices need a strong Modem for fast internet connection of the PCs. Again, a Combo modem router is more advantageous. You can connect wirelessly over WiFi or using Ethernet cables.

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