Best DOCSIS 3.1 Cable Modems (Router Combo, Comcast, COX) in

Gone are the days when only the fiber optic cables provided high-level gigabit level speeds. Now we have best DOCSIS 3.1 cable modem technology introduced by CableLabs, which is more efficient and effective.

Due to these modems’ outstanding performance and extraordinary results, most of the cable service providers have started opting for the DOCSIS 3.1 technology in different locations.

Do you wish to have uninterrupted high-speed internet while working from home? Do you want to experience seamless, lag-free online gaming sessions?

If yes, then it’s high time that you invest in a DOCSIS 3.1 modem and boost your internet speed. It’s the best possible investment for online classes, online business meetings, seamless gaming sessions, and 4k video streaming.

Before you look for the right DOCSIS 3.1 cable modem, it’s important to check if your internet service provider supports this technology in your area. You being here tells that you’ve already confirmed it, and now you just want to know which modem will be worth your time and money.

To save you from all the hassle, today we are here with a list of the top good quality DOCSIS 3.1 cable modems of all time.

List of Best DOCSIS 3.1 Cable Modems

Here is our round up for the best best docsis 3.1 modems router combo, comcast, cox for faster internet.

  1. NETGEAR Cable Modem CM500 (Cheap DOCSIS 3.1 Cable Modem)
  2. ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem (Best Modem/Router Combo)
  3. NETGEAR Nighthawk C7800 Cable Modem (Best WiFi 6 Router/Modem Combo)
  4. Motorola MB8600 DOCSIS 3.1 Cable Modem (Best for Home Use)
  5. NETGEAR Nighthawk CM1150v Cable Modem (Best gigabit modem)
  6. ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem
  7. Motorola 24×8 Cable Modem, Model MB7621
  8. Netgear Nighthawk CM1100 DOCSIS 3.1 Cable Modem (Best for Xfinity voice services)

1. NETGEAR Cable Modem CM500

NETGEAR Cable Modem CM500

The very first best  DOCSIS 3.1 cable modem that we have for you is none other than the NETGEAR CM500 modem. NETGEAR has always been the talk of the town for coming up with impressive devices and modems.

This is exactly what the CM500 is about. It’s one impressive high-speed cable modem that works with some of the most famous cable service providers like;  Time Warner Cable and Comcast XFINITY.

The best part about this third-party modem is that with it, you get to save upto $168/yr in paying your equipment rental fees. Moreover, it comes with an impressive design that can be virtually placed anywhere possible.

When it comes to performance, the CM500 modem is unbeatable. It supports a speed that’s 16x times faster than what the DOCSIS 2.0 devices offer. In a nutshell, you won’t ever have to worry about a slow internet connection when streaming HD videos.

On top of everything else, with this modem, you even get a high-speed Gigabit Ethernet port that allows you to transfer the speed to your local network.

With a simple web browser, you can monitor and control the modem, and there aren’t any feature-rich software capabilities that you have to stress about. From its design to its functionality, each and everything is worth it!

2. ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem

ARRIS SURFboard SB8200 DOCSIS 3.1 Gigabit Cable Modem

Want a DOCSIS 3.1 cable modem that offers a reasonable price without compromising on the quality? If yes, then you need to get your hands on the ARRIS SB8200 modem right away because it’s just the best in that regard. One of the best things about this modem is that it can easily reach up to 2Gbps of download speed. 

For someone who wants to future-proof his internet setup without spending a lot of money, ARRIS SB8200 is just the right choice. Furthermore, with this modem, you’ll enjoy reduced latency, less interference, reduced gaming ping, and network traffic transmission will be easier due to the active management of the queue.

Unlike other modems, this one’s quite easy to set up, and there aren’t any complications that you’ll face here. The most appealing and attractive feature here is that the processor is extremely and exceptionally powerful, which is exactly what people look for when they are buying a DOCSIS 3.1 cable modem. 

It’s compatible with several different ISPs, and there are two gig Ethernet ports that will help provide you the best experience. The only thing that might bug you a little is that the modem heats up really quickly, but it’s not as big of a deal, especially if you consider the rest of the features and benefits you are getting.

3. NETGEAR Nighthawk C7800 Cable Modem

NETGEAR Nighthawk C7800 Cable Modem

Most people complain about not having the feature of a Wi-Fi router in the DOCSIS 3.1 modems. However, it’s time to beat these odds with the all-new and impressive NETGEAR Nighthawk C7800 modem.

This device comes with an AC3200 Wi-Fi router, and it also serves as a DOCSIS 3.1 modem to provide you the highest internet speed levels possible. 

The most appealing factor of this modem is that it can cover around 3000 sq. ft of area, and you can connect more than 45 devices all at the same time. If you are someone with a big family and if your internet connection needs are quite high, then this modem+router will be the best thing to put your money in.

It comes with several different features that you’ll definitely fall in love with, and one of them is the parental control feature, where you get to control your network completely. If you are the kind of person who prefers wired connections, then this device will serve you just right as it comes with a total of 4 gigabit Ethernet ports. 

These ports combined will give you unlimited speed and unlimited connection. Moreover, if you wish to connect your non-wireless devices like your Xbox, etc., then you have two hi-speed USB 3.0 ports for it, always on the go. 

Keeping in view all the features and the fact that this modem also serves as a Wi-Fi router, there’s absolutely no doubt in the fact that it’s the best device to invest in this year.

4. Motorola MB8600 DOCSIS 3.1 Cable Modem

Motorola MB8600 DOCSIS 3.1 Cable Modem

If latency and connection drops are two of your biggest concerns, then the Motorola MB8600 modem is the right device to get your hands on. This device will help by giving you the highest internet speed connection for seamless streaming and gaming. 

What’s best about this modem is that it comes with the longest possible warranty of 2 years in total. When it comes to the performance, you won’t ever have any regrets related to this modem as it comes with eight upload channels and 32 download channels.

The web pages will load faster than you can ever imagine, and there won’t be any latency issues that you’ll ever face with the MB8600 modem because of the active queue management feature it uses.

Especially if you are looking for a modem with the highest possible download speed, then without any doubt, the MB8600 will fulfill your needs as it offers a speed upto  3.8 Gbps. 

In simpler words, within minutes, you’ll have your files, videos, or games downloaded no matter how big the file size is. The only two drawbacks of this modem are that first, it’s a little pricey, and second that it comes with only a single Gigabit Ethernet port. 

However, both these drawbacks can be overlooked easily, especially if you consider the rich features that this modem comes with.

5. NETGEAR Nighthawk CM1150v Cable Modem

NETGEAR Nighthawk CM1150v Cable Modem

Looking for a modem that supports Xfinity Internet and voice in the most efficient possible way? The NETGEAR Nighthawk CM1150 v modem will work best for you here as it’s a standalone modem for the best voice support through the phone lines. 

Moreover, this modem comes with the best link aggregation that will help you add more strength and value to your wired connections. You won’t ever have to worry about your modem heating up because, first, it comes with a beautiful vertical design, and secondly, it has enough vents to let the heat out easily. 

In a nutshell, the overall health of this modem will always be on board, even if you’ll use it for 6 to 8 years straight. With it, you can connect to multiple devices all at the same time, and due to the 4  gigabit Ethernet ports, you’ll have a very strong, reliable, and fast internet connection. 

On top of everything else, there are some more interesting features offered by the CM1150 V modem, including; 3-way conference calling, caller ID, and call forwarding.

Thanks to the link aggregation feature, this modem supports the 2 Gigabit plan, which is why you’ll get an extremely high-speed internet connection to enjoy your calls, streamings, and gaming sessions. 

The only issue that you’ll face is the price. If compared to other modems, the CM1150 V is a little too expensive. 

But for someone who knows what NETGEAR offers and what quality it delivers, price won’t be an issue, especially when you are getting complete voice support and several other useful features.

6. ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem

ARRIS SURFboard T25 DOCSIS 3.1 Gigabit Cable Modem

If you don’t want to rely on your ISP and just somehow want you to future proof your internet setup, then the ARRIS T25 cable modem is probably the best thing to buy this year.

What’s best about this device is that it supports voice services just like the CM1150 V modem. Moreover, it offers the best high-end hardware along with extraordinary downstream and upstream speeds. 

On top of that, you get 2×2 OFDM DOCSIS 3.1 channels with it, which is quite reasonable considering the price that you have to pay. Due to the combination of these channels, you won’t ever have to stress about having a poor internet connection with low latency levels.

As said earlier, this modem supports voice services, especially Xfinity digital voice service, and for this, you get 2  telephony ports and two 1-Gigabit Ethernet ports. In other words, you can always rely on this modem as it works as a 2 in 1 device that serves you like a DOCSIS 3.1 cable modem as well as a voice adaptor. 

What we found more impressive was its durability, thanks to the proper ventilation system and the compact tower design that takes care of the modem’s health. As far as the drawbacks are concerned, there’s not much you need to worry about when buying the T25 modem. 

It just lacks a backup battery and a USB port that you might require sometimes. Overall, if you want the best bang for your buck, then this modem is a must-have for you.

7. Motorola 24×8 Cable Modem, Model MB7621

Motorola 24×8 Cable Modem, Model MB7621

Instead of renting a modem from your ISP, it’s always better to be wise and spend money on something that’s worth it! Here we are referring to you none other than the Motorola MB7621 cable modem, which is going to bring you the best value for your money. 

It’s one of our most favorite modems because, first of all, it’s less costly as compared to other modems, and it doesn’t compromise on the speed of the internet. Keeping both these things in view, one can easily tell that this modem by Motorola is one worthy device to invest in. 

With it, you get eight downstream channels and 24 upstream channels that are capable of handling speeds upto 650 Mbps. Especially if you want to save yourself a significant amount of money, then you shouldn’t think twice before investing in the MB7621 modem. It comes with a 2-year warranty that ensures that this modem comes with a long lifespan.

Gigabit Ethernet port is the most impressive thing about this modem as it connects to a Wi-Fi router easily. It can connect to a gaming station or any other external device without any hassle. 

Moreover, it comes with a quick guide that will help you with the setup, and you’ll be done with it within a few minutes. When it comes to the design, it’s quite beautiful with that meshy look. The modem is compact, so it definitely can save you a lot of shelf space. 

Whether it’s your home or your office, we can bet on the fact that this modem will look good anywhere you place it.

8. Netgear Nighthawk CM1100 DOCSIS 3.1 Cable Modem

Netgear Nighthawk CM1100 DOCSIS 3.1 Cable Modem

Lastly, we have the NETGEAR Nighthawk CM1100 cable modem, an exceptionally good DOCSIS 3.1 modem to put your money on. Want to cut down on your rental and stop yourself from relying on your ISP? It’s high time to consider buying the best cable modems, which, without any doubt, is the CM1100. 

If you want an experience of multi-gig internet speeds with both a wireless and a wired connection, then the CM1100 will fulfill your needs here. Yes, other high-end modems support gig speeds upto 2Gbps, but with the CM1100, you can expect a support of just 1Gbps.

As far as the ports are concerned, this modem comes with a single Gig Ethernet port, so you can either opt for a wireless connection or a wired connection, the choice here is all yours. 

What makes it a good option is that it supports OFDM 2 x 2 technology, reducing latency to a whole other level due to 32 x 8 channel bonding. 

The drawback here is that you don’t get any link aggregation with a single port, but if compared with all the other features that you are getting, this isn’t something too big to worry about.

Buying Guide for the Best DOCSIS 3.1 Modem

For starters, you should never make the mistake of buying a used modem because if you do so, the modem will still be connected with the previous owner and his internet setup. So instead of wasting your money there, you should be ready to spend a little extra and get a DOCSIS 3.1 cable modem that brings you your desired results.

Here are a few important factors to consider when trying to find the best DOCSIS 3.1 cable modem for your exceptional internet connection needs;

ISP Compatibility

The very first thing you need to do is to confirm that your internet service provider is supporting the DOCSIS 3.1 technology in your area or not. You won’t be able to activate your modem if it’s not compatible with your internet service provider, which means that you’ll just be wasting your money here.

Signal Range

When looking for a combo that serves you both as a modem and as a router, you are supposed to consider the signal range offered. The signal range tells how much area it covers, and you also need to consider the number of devices that it can support all at the same time. The latest Wi-Fi technology is 802.11ax, but that can be quite expensive for you, so if you opt for a reasonably priced modem, then even the 802.11ac technology will be enough for you.


Considering the WEP and WPA/WPA2 wireless security protocol is a must when you are looking for a modem that also serves as a router. Following this security protocol means that no random user or hacker can enter your network.


Lastly, price is an important factor to consider, and when it comes to DOCSIS 3.1 cable modems, they can be quite expensive, so you better decide on a budget before time. If you want something cheaper, then the NETGEAR CM1100  will be the best one as it gives you the option to use different plans.

DOCSIS 3.0 vs 3.1

Whenever you are buying cable modems, the most important feature that you need to consider is that of the DOCSIS. As far as DOCSIS 3.0 and 3.1 are concerned, they are version numbers assigned to two different protocols. They both are different from one another, and of course, DOCSIS 3.1, being the new version, is a little more advanced than DOCSIS 3.0.

Here are some ways in DOCSIS 3.1 is different;

1-Less energy consumption

The DOCSIS 3.1 cable modem efficiency is better than the 3.0 version, and due to the queue management technology, less energy is wasted and consumed. This is one of the biggest differences between the two DOCSIS versions.


The second major difference is that of the speed. DOCSIS 3.1 offers downloading and uploading speed that is unbeatable, and when compared to DOCSIS 3.0, it’s a lot more. DOCSIS 3.1 offers a downloading speed upto 10GB, and its uploading speed is 1GB per second, which is exactly what users look for nowadays.


3.1 comes with active queue management, which is probably the one difference and reason why people opt for this version instead of 3.0. With active queue management, you won’t have to worry about any lags or delays when streaming HD content or playing games. It will be a seamless and smooth experience due to no or very little network delay.


Question1: What DOCSIS 3.1 Modem Is The Best For Comcast?

NETGEAR CM500 cable modem will be the best suitable modem for Comcast. It supports speed, which is 16x times faster than that of DOCSIS 2.0.

Question2: What DOCSIS Modem Do I Need For 1000 Mbps?

All of the above-mentioned modems on the list are worth using if you want something for 1000 Mbps. It all falls back to your choice and the considerations you make when deciding on a modem that you’ll be spending your money on.


You might have been having lag and latency issues with your previous DOCSIS modems, but with the DOCSIS 3.1 modems mentioned in the list, we assure you that you won’t ever have to go through any such issue. 

With technology evolving at a rapid pace, you might have to change the old modems as soon as possible because there will come a time when they won’t be compatible with any of the current ISPs. 

By upgrading to DOCSIS 3.1, you’ll witness some real-time benefits like increased internet speed, no lagging, no latency, and on top of everything else, you’ll be able to stream your favorite shows, attend online classes and play games in a better way. 

If you do second us on this, then without waiting any more, just get your hands on any of these modems jotted down in the list and see how things change for you.

Best DOCSIS 3.1 Cable Modems Black Friday Deals 2021

We have created a list of the most discounted cheap and best DOCSIS 3.1 Cable Modems Black Friday deals and DOCSIS 3.1 Cable Modems Cyber Monday deals for this year’s holiday season 2021.

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