Best Docsis 3.1 Modem for Comcast

Best Docsis 3.1 Modem for Comcast – With the DOCSIS 4.0 standard that is currently being worked upon, the downstream speeds are still going to be at about 10 Gbps, but the upstream speeds are going to get a major boost, and would reach 6 Gbps.

With that in mind, it is important to understand the history of the DOCSIS standard because it shows you that these standards are all an ever-evolving process and as our needs and internet requirements rise, there will be newer, faster standards which will support an even faster downstream/upstream speed. The technology took a major jump over the past three decades as it went from 10 Mbps to 10 Gbps – a sign of changing needs and changing times.


1.Motorola MB8600

Motorola is among the oldest and the most trustworthy names when it comes to network solutions. This is among the best DOCSIS 3.1 cable modems from the company, the Motorola MB8600 supports very high connection speeds – ranging up to 6,000 Mbps at the upper limit. The modem is certified by various ISP networks such as Comcast, Xfinity, and Cox, and supports their Gigabit plans really well. In fact, this is among the best modems for Gigabit connections.

Since this modem has been approved by various ISP networks, you won’t even need a rental modem from them and you could save over $150 which would otherwise have to be paid to your ISP in rental charges. The modem is also highly compatible with practically all WiFi routers which will help you ensure the fast internet reaches all over your home.

2.NETGEAR (CM1150)

One of the most prominent names when it comes to getting modems and routers for your home network, Netgear also makes some of the best DOCSIS 3.1 cable modems, and the CM1150V is a top name from the company. This modem supports speeds up to 2 Gbps and is more than enough for an entire household’s high-speed internet needs.

The modem has been certified to function really well with Comcast Xfinity internet connections, and also replaces the rental cable modem, which would otherwise cost you $168 in yearly rental. Besides that, there is no restriction on the router too, and you can purchase any router to connect with this modem without any restrictions.


If you are looking for a value-for-money sort of a deal, this modem from Netgear (once again) is something that you should totally get your hands on. Priced under $200, you aren’t really getting it for ‘cheap’, but this is something that is totally worth every penny that you will be paying for it. This DOCSIS 3.1 cable modem from Netgear has impressed millions of users all over the world and is one of our favorites too.

It supports the usual list of ISPs, Xfinity by Comcast, COX, and Spectrum. These three companies have officially approved of it and you will not need to buy their rental modem if you own this one. Straight up, you save $168 in rental costs if you own this. This is an ideal modem for those people who require high-speed internet connections, but more so for those who need stability.

4.ARRIS SURFboard SB8200

After a flurry of Netgear routers, here comes one from ARRIS. One of the first things that really stands out about this modem that makes it a top choice is the fact that it supports a very long list of Internet Service Providers. This is one of the best DOCSIS 3.1 cable modem out there, and supports high speeds of up to 2 Gbps.

This modem from Arris is, technically speaking, one of the most robust devices out there and one which will last you for a very long time. It has been designed using the 32 x 8 channel bonding technology, which ensures that the data is prioritized based on your needs and the network traffic is organized better to ensure tasks with a higher priority get better internet access. Besides that, the modem supports 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels.


Perhaps the best option out there for anyone who needs a very fast and very stable wireless connection, and doesn’t want a separate router from a modem. This is a wireless router that comes in with a built-in DOCSIS 3.1 cable modem, which is an incredible option for people who wish to use it in a large home. The router supports a large number of ISPs, but comcast is not one of them, which is one drawback that you need to know up-front about.

This WiFi system from Netgear (not the last time you’re seeing this name on our list) comes with 8 simultaneous WiFi streams, which makes it very easy for you to manage multiple connections at the same time. At a coverage of 2500 sq. ft., this wireless router is just the perfect option for anyone who has a large home, or needs a multi-floor connectivity. Moreover, you can wirelessly connect over 40 devices to this router at the same time. You can even expand your wireless coverage by buying satellites which will help you beam the internet into an even larger area.

6.ARRIS SURFboard T25

Arris makes some of the best DOCSIS 3.0 and DOCSIS 3.1 cable modems out there, and this is another example of the fine work that they’ve been putting in. However, unlike the other Arris modems that you have seen in our list which are rather chonky looking and box-like, this one has a somewhat better look to it, thanks to some much-needed design changes. This is a pure cable modem and does not include a built-in wireless router.

On the back of this modem, there are four ports – two x 1-gig Ethernet ports, as well as 2 phone lines. There’s also a port for the coax cable to enter the modem. The modem can support internet speeds up to 2Gbps on the Xfinity network, which is another major plus point – giving you an access to the maximum possible speed that you can get on cable internet at the moment.

7.ARRIS Surfboard SB6183-RB

While the ARRIS SB6183 runs on DOCSIS 3.0 tech—older than the DOCSIS 3.1 of the two previous devices—it’s still a zippy little modem. If you have an Xfinity Blast! or Blast! Pro Plus plan, go for this device to get the speeds you need without forking out a ton of dough.


Best Docsis 3.1 Modem for Comcast – With DOCSIS 3.0 in 2006, another major shift in speeds came up as they shot up from 40 Mbps in DOCSIS 2.0 to 1 Gbps in 3.0. DOCSIS 3.0 continues to be a popular type of modem that is still in use today, but is fading out of the markets ever since DOCSIS 3.1 was introduced in 2013. It was a 10x improvement, as it supported download speeds of over 10Mbps and upload speeds between 1-2 Gbps.