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  • Motorola MB8600

  • Arris SURFboard SB8200

  • Motorola MG7700

  • Netgear CM500

  • Motorola MB7621

  • Arris SURFboard SB6183

Product image of Motorola MB8600
Motorola MB8600

The Motorola MB8600 is a fantastic high-speed modem that should take care of your needs for years to come thanks to its proven design, 32x8 channel selection, and support for Comcast, Cox, and most major cable providers. It is one of the best-selling modems online, recommended by scores of reviewers, and has support for speeds well beyond what most people have from their cable company currently.

As with most of the modems we recommend, there’s no router included so you’ll need to have one of those as well—though for these high-speed plans we recommend doing that anyway so you can actually benefit from those increased speeds.

The one thing we’d say is this is more of a higher-end modem designed to really take advantage of high-speed (Gig-speed and up) plans. If you aren’t planning on paying up for a plan like that then one of the cheaper modems in our list is probably a better fit.

Pros

  • Docsis 3.1 supports Gigabit plans

  • Gigs Ethernet port

  • Active queue management

Cons

  • No router included

Product image of Arris SURFboard SB8200
Arris SURFboard SB8200

The Arris Surfboard SB8200 is another Docsis 3.1 modem that supports so-called “Gig-speed” plans and up, with a similar 32x8 channel selection handling multiple devices efficiently. This modem also features two Gigabit Ethernet ports for a direct-wired connection, though if you’re using a router with this you shouldn’t need both.

As with most of the modems we recommend, there’s no router built-in here. It’s more expensive than the basic modems out there, but you’re paying for speed more than anything. If you aren’t paying for the kind of Gigabit speeds that will take advantage of that, we recommend a Docsis 3.0 modem for now.

Pros

  • Docsis 3.1 supports Gigabit plans

  • Two Gig/s Ethernet ports

Cons

  • No router included

  • Doesn't support full Gig speed plans

Product image of Motorola MG7700
Motorola MG7700

If you do want a modem and router combination in one, then the Motorola MG7700 is the best choice that we’ve found. It has a good combination of speed, range, durability, and a simple setup. Reviewers love that it’s easy to set up and it replaces both the modem and the router for your internet plan, so it’s fewer devices that you might have to pay to rent.

Here’s where the speed issues come up though, this is a Docsis 3.0 modem so you will only get support for internet plans up to around 200, 300, or 400 Mbps (it depends on your provider). The router itself can support those speeds when wired or within a short range, but the built-in router here is a middle-of-the-road option meant for small homes.

If you have a larger home or want a plan with faster speeds, we recommend grabbing one of the faster Docsis 3.1 modems we picked and using a separate mesh router that will offer better coverage throughout your home, letting you access more of that high-speed connection around your house.

Pros

  • Includes router

  • Fast Docsis 3.0 support

  • Easy router management

Cons

  • Doesn't support full Gig speed plans

Related content

Product image of Netgear CM500
Netgear CM500

The Netgear CM500 isn’t the fanciest cable modem, but if you’re looking to cut costs it’s an excellent low-cost modem that provides Docsis 3.0 speeds and works with Xfinity, Cox, Spectrum, and more plans at speeds from 200 Mbps to 300 Mbps depending on your provider and plan.

Frequently on sale, this modem can usually be had for less than $50, so it will pay for itself in less than a year compared to monthly modem rental fees. It’s lacking some of the fancier features found on other modems and it doesn’t include a router, but unless you have a super-fast internet plan this will maximize your connection at a great price.

Pros

  • Fast Docsis 3.0 support

  • Easy setup

Cons

  • No router included

  • Doesn't support full Gig speed plans

Product image of Motorola MB7621
Motorola MB7621

The Motorola MB7621 is a bit more expensive than some of the other Docsis 3.0 modems we’ve looked at, but it earns high marks for its ease of setup, reliability, and it offers a full 24 channels downstream and 8 upstream channels. It is certified for Comcast and other major cable providers at up to 650Mbps, though you’ll need a router that supports that kind of speed if you want to access it wirelessly.

The MB7621 has excellent reviews online, though be aware that it often gets its reviews mixed in with the fancier (and more expensive) MB8600, which is a full Docsis 3.1 modem. If you don’t need full gigabit-level speed, this is the better choice, as you’ll save a bundle and it is still a very fast, very capable modem.

Pros

  • Fast Docsis 3.0 support

  • Simple to manage

Cons

  • No router included

  • Doesn't support full Gig speed plans

Product image of Arris SURFboard SB6183
Arris SURFboard SB6183

The Arris Surfboard SB6183 is a solid all-around modem if you only need speeds up to around 300 Mbps. It is relatively affordable, reliable, and supports 16 downstream channels and 4 upstream. It’s not the fastest modem, but it is a consistent performer that has won a lot of plaudits from professional and customer reviewers alike.

If you need a low-cost modem that supports high speeds (though not anything crazy), this is a great option.

Pros

  • Fast Docsis 3.0 support

  • Reliable, proven design

  • Easy setup

Cons

  • No router included

  • Doesn't support full Gig speed plans

Meet the tester

TJ Donegan

TJ Donegan

Executive Editor

@TJDonegan

TJ is the Executive Editor of Reviewed.com. He is a Massachusetts native and has covered electronics, cameras, TVs, smartphones, parenting, and more for Reviewed. He is from the self-styled "Cranberry Capitol of the World," which is, in fact, a real thing.

See all of TJ Donegan's reviews

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