The Best Cable Modems (2021 Reviews)

Rajat Hardy
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If you need to buy the best cable modem router in 2021, then it’s important to know a few things before you select one from the many options on the market.

Cable modems connect to your cable TV and provide high-speed Internet access. If you have a cable Internet service provider (ISP), then you most likely also have a cable modem or DSL modem built-in to your home’s network.

These built-in cable modems are usually good enough for general use, but if you have a heavy Internet usage regimen, or multiple streamers in the house, you may need to schedule a visit from your ISP technician to perform a site survey. You may even need to upgrade your built-in cable modem because it doesn’t support the high-speed tiers of service your ISP currently offers.

Cable modems are made by the same companies that make cable modems and DSL modems. Opinions on which cable modem is the best for you may differ from expert to expert, but be sure to test out the modem for a few weeks and be sure it’s performing to your standards.

These are the best cable modems we’ve reviewed for gaming, media streaming, multiple users, and more.

NameCategoryProduct
Arris TM822GBest OverallArris TM822G
Cisco Cable Modem DPC3008Budget PickCisco Cable Modem DPC3008
GRYPHON – Advance Security & Parental Control Mesh WiFi RouterUpgrade PickGRYPHON - Advance Security & Parental Control Mesh WiFi Router

1. Arris TM822G

Our rating: 9 / 10

Arris TM822G

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Pros:

  • Has advanced features
  • Excellent prize
  • Best alternative for the SB6121

Cons:

  • Can’t be used with internet providers that enforce their brand on broadband devices
  • Difficult to find someone who can fix it if there are any issues

The Arris Tm822g is a good, solid cable modem with all the features you’d want. The Tm822G supports 8 download channels and 4 upload channels. This gives you download speeds up to 340 Mbps. It also features US-based tier 1 support.

The Arris is backward compatible. It’ll work with all major internet providers, like Comcast, Time Warner Cable, AT&T, et cetera, and they’ll never have to update it again.

The syncing speed is fast. There are some competitors in this price range that take a little bit longer to sync. The Tm822g can connect to your cable line and get your modem up in minutes. You can get on the internet fast.

Read more about the Arris TM822G

2. MOTOROLA 8×4 Cable Modem

Our rating: 8 / 10

MOTOROLA 8x4 Cable Modem

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(Certified Refurbished)

This is a cable modem that can handle 343 Mbps download speed and 131 Mbps upload speed. Perfect for streaming 3D movies and online games. This model is the best cable modem for streaming.

This Motorola cable modem model is designed to manage the needs of "multiple users" even with a huge download and upload speed. This is a fast cable modem.

Read more about the MOTOROLA 8×4 Cable Modem

3. NETGEAR Nighthawk Smart WiFi Router

Our rating: 7 / 10

NETGEAR Nighthawk Smart WiFi Router

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Read more about the NETGEAR Nighthawk Smart WiFi Router

4. GRYPHON – Advance Security & Parental Control Mesh WiFi Router

Our rating: 7 / 10

GRYPHON - Advance Security & Parental Control Mesh WiFi Router

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Pros:

  • Easy setup
  • Easy to use
  • Two USB ports
  • Has an intuitive app
  • Fantastic customer support
  • Rates are reasonable

Cons:

  • VPN not included.

Control & 2 USB 3.0 Ports, IPv6 for IPv4 support (Compatible with Alexa)

If you need the best blocking technology in your router, the Gryphon Advanced Security WiFi Router is an excellent choice. One of its biggest selling points is that it is compatible with Alexa. This can help make parents’ life easier.

The router has 3 mesh points, dual USB ports, IPv6 support, and an app that is intuitive and easy to use. It comes with a one-year warranty, so you’re covered in case of malfunctions.

Read more about the GRYPHON – Advance Security & Parental Control Mesh WiFi Router

5. ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem

Our rating: 6 / 10

ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem

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Pros:

  • Speedier download speeds
  • Easy to set up and use
  • Great design
  • Compatible with all major cable Internet providers

Cons:

  • Slightly bulky
  • Not budget friendly
  • 90 days limited warranty

The ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White) is a powerful cable modem that can resist up to 680 Mbps of downstream data transfer rate. This product, which is manufactured by ARRIS, is among the most respected and highly-rated cable modems in the market today and it is also compatible with all major cable Internet providers.

Despite being a DOCSIS 3.0 cable modem, which means it can deliver up to 672 Mbps of downstream data transfer rate, the ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem, Approved for Cox, Spectrum, Xfinity & others (White) can be used with the premiere version of WiFi. Among the noteworthy features of this cable modem which should be highlighted include the fact that it is relatively easy to set up and use, and buyers can also expect it to deliver blazing-fast download speeds of up to 672 Mbps.

Read more about the ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem

6. Linksys DOCSIS 3.0 8×4 Cable Modem Certified

Our rating: 6 / 10

Linksys DOCSIS 3.0 8x4 Cable Modem Certified

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Linksys’s DOCSIS 3.0 8×4 Cable Modem is one of the best cable modems you can purchase. It supports speeds of up to 680 Mbps downstream and up to 131 Mbps upstream, which is an awesome feature for users looking to download movies and surf the internet while talking on Skype.

This cable modem is certified for use with Comcast, Xfinity, Time Warner, Cox, Bright House Networks and many more. It also secures your connection with internet security built into its firmware to protect you from network threats.

The model number of this modem is CM3008. Also, it comes with a 10/100/100 port and a separate 10/100 port. This modem is generally compatible with a variety of internet services.

Read more about the Linksys DOCSIS 3.0 8×4 Cable Modem Certified

7. Cisco Cable Modem DPC3008

Our rating: 6 / 10

Cisco Cable Modem DPC3008

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Pros:

  • Fast, easy installation
  • Works hand in hand with a smartphone
  • Fast speed
  • Works with any internet provider

The DPC3008 is a modem that works alongside your existing router to help you get the fastest speeds possible out of your internet service.

The device is a little bulky, so if you're looking to save space this isn't the best option for you. That being said, it's simple to connect and has quite a few impressive features, which may be more than some folks need.

Let's start with the basics, though. The interface on this modem is fairly simple, which is a nice touch. If your internet service requires a username and password, these will both be needed.

Read more about the Cisco Cable Modem DPC3008

8. Asus CM-16 Docsis 3.0 Cablelabs-Certified 16×4 686 Mbps Cable Modem Certified by Comcast Xfinity

Our rating: 6 / 10

Asus CM-16 Docsis 3.0 Cablelabs-Certified 16x4 686 Mbps Cable Modem Certified by Comcast Xfinity

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Pros:

  • Great performance
  • Ease of use
  • Good speed
  • Easy to set up
  • Reasonably cheap

(TC-1608)

Currently, I have the CM-16 and it has been working great. I also have a cable modem from NETGEAR and it hasn’t been working as good as this one. The best cable modem I’ve ever owned. I really recommend this one if you’re looking to upgrade to Docsis 3.0.

Read more about the Asus CM-16 Docsis 3.0 Cablelabs-Certified 16×4 686 Mbps Cable Modem Certified by Comcast Xfinity

Frequently Asked Questions (FAQ)

What is the most reliable cable modem?

Today, the most reliable cable modem is the Arris SURFboard SB6183.

What is the best cable modem to buy?

Cable Modems have come a long way and you can now get a modem that is pretty similar to a Dualband router (exclusive modem) for home use.

If you need a more long-term solution, we highly recommend Arris Surfboard SB6183. This is the current version of one of the best cable modems available. It’s compatible with all major cable providers. It’s DOCSIS 3.0, has downstream speeds of 343Mbps and upstream speeds of 131Mbps. If you will be using a home Wi-Fi system, then it can also serve your needs.

Arris SB6183 offers channel bonding of up to eight downstream channels. It supports IPv4 and IPv6 and has double firewall data protection.

What is the best cable modem for WOW?

Currently, WOW is using the DOCSIS 3.0 standard. The cable modem you need to use with your WOW subscription should be on the list of approved modems. You can check this list yourself and even compare the speed results of multiple modems to see which one works best for you.

You can also check whether your internet is up to 20mbps or if it is better to upgrade your internet speed by reading the details about WOW plans, speed, and modem provided on the official website. Generally, if you are having issues getting the internet speed advertised to you, you can call customer service and they will help you get the right price and speed plan.

Is it better to buy your own cable modem?

Even with a good service provider, there are times when you still might experience some problems with your internet connection. And in those situations, you can’t always expect the problem to be resolved as quickly as possible.

This is why having your own cable modem can be a very handy thing. They are also a lot cheaper to purchase than most consumer-based cable modems. So you can pay a little extra up front and save a lot of money in the long run. And even with the older models, you still get very decent speeds for the most part.

Conclusion

When it comes to picking out the right cable modem, it’s confusing. There are literally thousands of options to choose from, and they can get techy fast. Our goal is to help you understand the best cable modems so that you can make the right decision for your family. We have reviewed over 100 cable modem options and narrowed down the list to just 15 of the best and we’ll tell you why. But, first we want to make sure you understand what we look for when we review cable modems.

Our Recommendation

NameCategoryProduct
Arris TM822GBest OverallArris TM822G
Cisco Cable Modem DPC3008Budget PickCisco Cable Modem DPC3008
GRYPHON – Advance Security & Parental Control Mesh WiFi RouterUpgrade PickGRYPHON - Advance Security & Parental Control Mesh WiFi Router