Best Modem for Comcast

Best Modem for Comcast – But everyone has different internet needs and wants, so what modem you should get depends.

Thus, I have put together this list of the top 7 best Comcast Xfinity modems, so you can pick the one that fits you the best.


1.Motorola MB8611

This is where the Motorola MB8611 cable modem comes in. It is one of the newest products in the industry and uses the fastest cable modem standard – DOCSIS 3.1. So, along with blazing fast multi-gigabit internet speeds, you get excellent compatibility and a plethora of advanced features.

Before you go out shopping for this advanced modem, you need to know all its specs. Don’t worry, as we are here for you! In today’s post, we’ll review all the basic features of the Motorola MB8611 modem. Let’s begin!


The Netgear CM600 Cable Modem is not new. I first got it more than two years ago, together with a 300Mbps Internet plan with Comcast.

Before that, I generally replaced my modem almost every year. So CM600 has been one of my most lasting modems. Two years qualify as long-term. Now I can undoubtedly say this is a reliable device.


The NETGEAR CM500 is a great alternative to the ARRIS SB6183. The two trade blows since they are similarly priced and have similar specs/performance. The Netgear has a superior GUI. While the CM500 has a better warranty– two years as opposed to one. Then again, ARRIS has pretty bad customer service, so you might have tough luck taking advantage of that better warranty.

This modem provides 16 downstream channels and 4 upstream channels, with a maximum download transfer rate of around 680 Mbps and upload rates of 131 Mbps.

4.ARRIS SURFboard SB8200

New DOCSIS 3.1 tech gives the SB8200 enough power for 2 Gbps speeds.

The SURFboard SB8200 uses newer DOCSIS 3.1 technology to support download speeds up to 2,000 Mbps (or 2 Gbps).3 That’s perfect if you’re rocking Xfinity’s Gigabit internet plan—or if you’re running your home business on its 2,000 Mbps Gigabit Pro plan.

We’ve recommended ARRIS’s SURFboard routers before, so it’s no surprise to us that the SB8200 made it into our top-five lineup.

5.ARRIS Surfboard SB6183-RB

If you want the best DOCSIS 3.0 modem and are confused about various products, then you have come to the right place. ARRIS Surfboard SB6183 is among the best DOCSIS 3.0 modems due to its great reliability and high transfer rates. The modem is priced very nicely as well and costs a lot less than an average DOCSIS 3.1 cable modem.

The modem provides 16 downstream channels along with 4 upstream channels, which is the usual specification for high-end DOCSIS 3.0 cable modems. While this version doesn’t come with a built-in router, there is a slightly more expensive version that does (although we can’t directly speak to its quality).

6.NETGEAR Nighthawk Multi-Gig

It is compatible with almost all routers. It takes about 5 minutes or less to complete the entire setup.

It is equipped with 1 Gigabit Ethernet port which can be used to connect to a computer or a router. The Gigabit Ethernet port offers quicker access and downloads. This is one of the best modems that supports a speed of up to 500 Mbps. It is compatible with all the cable internet service providers.

It offers the fastest and most trustworthy speeds along with channel bonding. You will always have bandwidth and speed to use even if you use streaming or play games.


Its in-built DOCSIS 3.1 and DOCSIS 3.0 32×8 capabilities offer the topmost Internet speeds for all cable Internet services. It performs at the optimum efficiency level and speed in both slower networks in rural areas and in faster networks in urban locales.

You can rest assured as it works with all types of WiFi or Mesh routers.

Its Active Queue Management (AQM) considerably decreases internet latency. AQM enables faster page loads. It significantly improves interactive applications such as online gaming and video conferencing.


Best Modem for Comcast – We’re longtime renters of the Xfinity xFi Gateway modem and router, but the idea of saving money by buying our own routers pushed us to research dozens of cable modems. The xFi Gateway rental fee is $14 a month, which means you’ll potentially save  a year if you buy your own modem. (And router too, of course.)