Best Cable Modems For Comcast XFINITY 2021

Nowadays, it has become vital for any household or office to be equipped with a reliable and high-speed internet connection. With internet connections come cable modems. A cable modem allows you to interface with the local network that is providing you with an internet connection.

Cable modems come with multiple options to choose from, and their specifications and prices vary in the market. Generally, internet providers supply cable modems on a monthly rental, but you can choose to buy your own modem to eliminate this fee for the long term.

5 Best Cable Modems For Comcast 2021

Here are some of the best cable modems that work with Comcast XFINITY:


The NETGEAR CM400 is a cable modem that provides high-speed internet access to its users. The connectivity allows for download speeds ranging up to 343 Mbps and upload speeds of 131 Mbps. It is compatible with various wireless router and overall, the device is very easy to use and install.

The NETGEAR CM400 with DOCSIS 3.0 technology supports 8 downstream channels and 4 upstream ones, allowing for a safe and smooth internet experience. Furthermore, this cable modem is certified by CableLabs and utilizes DOCSIS 3.0 technology, allowing for efficiency and reliability.

The NETGEAR CM400 comes with a quick install guide and provides XFINITY customers with a fast self-activation option which they can opt for without a service call.

2. MOTOROLA MG7540 16×4

The MOTOROLA MG7540 16×4 is yet another cable modem router that provides a reliable and rapid internet connection. This is one of the most popular cable modem available on the market right now and you should consider purchasing this product.

It can deliver fast data connection with 16 downstream and 4 upstream channels, utilizing DOCSIS 3.0 technology and providing the internet with speeds up to 686 Mbps for downloading. The MOTOROLA MG7540 will become ideal for online streaming, gaming, media, and browsing because it can also work as a Dual Band router too.

This cable modem has four Gigabit Ethernet ports and a firewall. It also supports IPv6 and is compatible with all major US cable providers including Comcast. The modem is easy to install with plug-and-play internet access. In addition to that, it allows you to eliminate your monthly rental fee, serving as an outstanding long-term investment.

3. TP-Link TC-7610

The TP-Link TC-7610 can provide it’s users a safe and secure internet connection. The device utilizes the CableLabs-certified DOCSIS 3.0 technology, delivering high-speed and smooth internet connectivity.

Along with the Gigabit Ethernet ports, the cable modem serves the users with 343 Mbps download and 143 Mbps upload speeds. The TP-Link modem is compatible with all major US cable providers and comes with a quick installation guide, allowing the users easy setup and instant internet access.

Setup can be done with ease with hassle-free online activation or you can make a quick phone call to your Internet Service Provider. The company also provides a 2-year warranty period as well as 24/7 technical support with the cable modem.

4. NETGEAR CM600 (24×8)

The NETGEAR CM600 (24×8) serves as a cable modem that can be trusted to deliver reliable and high-speed internet connections.

It uses a combination of 24×8 channel bonding, a Gigabit Ethernet ports, DOCSIS 3.0 technology, and IPv6 support to ensure outstanding performance in terms of speed and connectivity. The NETGEAR CM600 provides up to 960 Mbps download (Max), allowing the user a wonderful experience in browsing and media streaming.

The device can be paired with any Wireless router or gateway. Simply plug this CM600 cable modem into your existing wireless router/gateway and you can get a better experience for internet speeds you pay for.

The cable modem comes with an easy installation guide and plug-and-play setup. Furthermore, the cable modem serves as a good long-term investment, allowing you to eradicate your monthly fees.

5. Motorola MB7420 DOCSIS 3.0

The Motorola MB7402 is an attractive and reliable cable modem which one can use for both household and office purposes. It comes with 16 data channels that carry data from the internet and around 4 channels that carry data to it.

It provides a 10/100/1000 Gigabit Ethernet port along with DOCSIS 3.0 technology which ultimately opens the gates for a high-speed internet connection. The Motorola MB7420 has a quick and easy setup with the assistance of an installation guide.

The cable modem is backed by a 2-year warranty, and it comes with a sleek and smooth design that minimizes shelf space and provides an appealing look.


Most of these cable modems may have specifications and prices which would look very similar. When deciding to invest in a cable modem, it is necessary to look at the compatibility and validity of the investment.

As a customer, you would want to purchase a cable modem that is compatible with your provider and serves as a worthy investment that would eliminate your monthly fee. It may seem tedious to make a decision regarding the right cable modem, but at the end of the process, it is totally worth the time and effort.

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