Motorola MB8611 Review: Everything you wanted to know

Are you looking to improve your cable internet speeds? Regular cable modems might not offer you the speed you desire. Plus, if you’re internet service provider is offering you the device, you’re probably dealing with the hefty cable modem rental fees. Is there a solution?

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!

In a hurry? Check out the MB8611 here on Amazon

Motorola MB8611 DOCSIS 3.1 modem: A quick intro   

The Motorola MB8611 is a best-selling DOCSIS 3.1 cable modem that has quickly established a name for itself. This is mainly due to its DOCSIS 3.1 support, which is the only major cable internet standard offering more than 1 Gbps. So, online gaming and HD video streaming will be the best you’ve ever experienced. 

This feature also makes this a very reliable modem to pair with your current internet plan. Moreover, this modem is also loved by people using 2-gigabit internet plans, as it offers much more than average internet speeds. 

But why is there so much hype about it? It’s because users who don’t have DOCSIS 3.1 can still enjoy the fastest internet speeds. As this gigabit modem is backward compatible with 32×8 DOCSIS 3.0, everyone can enjoy faster speeds. Along with this backward compatibility, the gigabit modem also supports eight upstream and 32 downstream modem channels.

Therefore, you’ll get lag-free internet access on all connected devices. All these features make the device ideal for not only residences but also offices. It is a powerful device and one of the most compatible modems out there, so you better keep an eye out for it.

The best part? It’s super easy to set up and has a very straightforward process. So, within minutes you’ll be able to enjoy excellent gigabit internet services, no matter which internet provider you opt for. If you do run into any issues, the company offers high-quality customer support to attend to your needs.

Reasons to buy Motorola MB8611 multi-gigabit cable modem 

Already impressed by the device but still unsure whether to buy it? In this section, we’ll dive deeper into the details of this high-performance cable modem and tell you how it stands apart.

Excellent Compatibility

This is a 3.1 multi-gigabit cable modem which is an all-rounder when it comes to compatibility. Firstly, you can pair this with any wifi router and modern mesh routers. Further, it also works well with any affordable gaming router you might have. So, be prepared to experience high-speed connections on all connected devices! 

Its advanced design comes with a 2.5-Gigabit Ethernet port. This makes it super easy to enjoy effortless internet access on devices such as smart TV, game station, laptops, desktops, and any ethernet compatible device. 

Talking about the internet standards, this modem supports the latest DOCSIS 3.1 and is backward compatible with the DOCSIS 3.0 too. So, even if your gigabit internet services haven’t been updated to the latest standard, don’t worry. As soon as your ISP upgrades themselves, you’ll be the first in line to experience the fastest speeds. 

So, this is a fantastic device to have for the sake of future advances in technology. 


This is another important factor that sets the device apart from the others. If you take a closer look at its features, you’ll see that it’s an affordable cable modem coming at a budget price. You can easily considered it a perfect balance of price and features.

Let’s understand this in a little more detail. If you’re someone who rents a cable modem from their service provider, you must be tired of paying the extra bucks. However, with this dedicated modem, you can save up to $170 each year on rental modem fees. How amazing is that?

How does this happen? Well, it’s because this gigabit modem is certified by Comcast XFINITY. That’s why you get to save so much on your cable modem services.

Besides all that, the modem works with Comcast XFINITY, Cox Communications, Comcast Business and Charter Spectrum, and other American service providers. Moreover, the company allows you to a preferred data plan. Just visit their website to get more details! Everything about this gigabit modem is convenient. 

Although your exact savings will depend upon your ISP, you still save a lot more than you ever used to on internet plans.

High Speeds

If you’re tired of experiencing broadband quality internet? Then better days are here for you! The Motorola MB8611 gigabit modem is a frontrunner when it comes to speed. Coming with a 2.5 Gbps Ethernet port, it offers more than 1-gigabit internet speeds. 

So, this will offer sufficient bandwidth for gaming, streaming, video conferencing, and video calling. Moreover, this 3.1 multi-gigabit cable modem features very low latency along with excellent upload speeds and download speeds.

It makes the gigabit cable modem ideal for responsive gaming and playing online multiplayer games.

The 2.5 gigabit ethernet port offers outstanding downstream speeds of around 2,500 Mbps and upstream speeds of almost 800 Mbps. Your Comcast Xfinity modem is built for the kill!

Is that all? Certainly not! The Motorola MB8611 multi-gigabit modem has a feature called active queue management. This allows your modem to reduce the latency even further to support faster streaming, page loads, gaming, and video calling.     

Consistent Bandwidth  

Talking about bandwidth, this device is an excellent option. Generally, gigabit ethernet connections are top-class when it comes to communication. That’s why the MB8611 XFINITY modem offers such consistent bandwidth, low latency, lower ping times, and fewer packet losses during data transfer.  

The device’s 2.5 ethernet port can enable you to reach a maximum speed of 6 Gbps, based on the speed offered by your cable ISPs. Overall, the bandwidth offers a consistent and reliable internet connection even if multiple users are connected to it.

So, this multi-gigabit internet modem is perfectly suitable for use in small, medium, and large corporate settings. However, if your internet provider is still offering you the DOCSIS 3.0, these speeds maybe a little lower.

You’ll be restricted to enjoy speeds up to 1 Gbps for now. But as soon as they start using DOCSIS 3.1 in your area, your internet connection will speed will bump up to a lot more.

In most areas, the old internet standard is still being used. So, when it is updated, you’ll be one of the first to experience spectacular speeds. You just have to hold on a little cause it’s worth the wait!

Easy Setup             

The cable modem setup is very easy, and you can do it easily without being a tech-nerd. You get an installation manual and high-quality documentation to do it with ease. There are just three simple connections – power cord, coax cable, and Ethernet port. Just follow the guide, and you’ll be good to go.

Needs some help? The company is also famous for its world-class customer support. So, if you face any issues while setup or using the device, they have tech support in English and Spanish. Moreover, the team is efficient and ready to serve you 24×7.     

Where does Motorola MB8611 stand as compared to Motorola MB8600?  

The closest competitor to the MB8611 model is its predecessor, the MB8600. If you look at both their features, you’ll find they are almost the same. Both support DOCSIS 3.0 and 3.1, are certified by Comcast Xfinity, and are compatible with all devices and internet service providers.  

However, there are slight differences that set them apart from each other. Firstly, the MB8611 offers maximum download speeds of 1 Gbps, whereas the MB8600 offers a max speed of around 6000 Mbps. This will hugely affect high-intensity online gaming, video streaming, and conferencing performances. Thus, the MB8611 is a winner here. 

Secondly, the MB8611 offers a 2.5 Gbps Ethernet port, whereas the MB8600 has a 1.0 Gbps port. So, internet speed and consistency will be better in MB8611 than MB8600.

However, when it comes to cost, the MB8600 is priced lesser than the MB8611 modem. Although the difference isn’t too much, many customers might feel as MB8600 is a more cost-effective option. 

The Final Verdict   

The Motorola MB8611 is an amazing device offering some of the most advanced features in the market. This Comcast XFINITY Gigabit modem is built for high-speed responsive gaming, video creation, streaming, and virtual conferences featuring multiple members.

If you want to save some real cash that is wasted on modem rental, this is the ultimate device for you. Backed by a two-year warranty, the device will be an excellent purchase.

On the other hand, if you are on a tighter budget, the Motorola MB8600 will cost a bit less than the MB8611. However, you’ll have to compromise on the maximum download speeds and performance. 

To sum it up, the Motorola MB8611 is a beast and will be fantastic if you wish to experience high-speed internet like never before!

Check out other DOCSIS 3.1 Modems reviewed here

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