Looking for the best DOCSIS 3.1 modems? Look no further.

Ditching another monthly fee and unlocking the better, faster speeds from your ISP through DOCSIS (data over cable service interface specification) 3.1 technology. 

In this post, we’ll share the best DOCSIS 3.1 modems compatible with most cable ISPs. We will also explain why they are the best upgrade choice and share the features, pros and cons of each DOCSIS 3.1 device.

These DOCSIS 3.1 modems are not hard to understand or set up. After you figure out what you need, you’ll find it’s pretty simple.

Just make sure your cable ISP is already offering gigabit internet plans before you purchase to ensure you have a good internet connection.

Top DOCSIS 3.1 Modems

Finding the right modem for your home is important. We have broken down our top picks into categories. Hopefully, there is one that fits your networking needs.

Here are our top picks that we would call “Best Overall” since they encompass all categories of the bestDOCSIS 3.1 modems.

1. Motorola MB8600 (Best Overall)

Motorola MB8600 DOCSIS 3.1 Modem
28,726 Reviews
Motorola MB8600 DOCSIS 3.1 Modem
  • Top Internet Speeds for all Multi-gigabit Speed Tiers - Wirecutter recommends this model as the best...
  • Save Money - Eliminate up to 168 dollars per year in cable modem rental fees (Savings are shown for...
  • Flexible Compatibility - Pair with any Wi-Fi router you’d like, including Whole Home Wi-Fi or Mesh...

We are kicking off this DOCSIS 3.1 list with the Motorola MB8600. This modem beats the competition in terms of cost, warranty and functionality.

It is one of the most robust options for the price, delivering download speeds of 1,000+ Mbps (1 Gbps) as well as fast upload speeds.

Basically, it offers some of the fastest internet speeds on the market.

It is made to handle laser-fast DOCSIS 3.1. Yet, it is backwards-compatible to networks using DOCSIS 1.1, 2.0 and 3.0 32×8 speeds.  In this way, it is designed to bridge the two (since some cable ISPs run both). 

So, even if your ISP hasn’t upgraded its network to DOCSIS 3.1, you can future-proof yourself with this cable modem and ensure you always have maximum speeds.

This DOCSIS 3.1 modem can work with any router to provide a near-perfect, uninterrupted connection to multiple devices—from your wall-mounted Smart TV to your wireless streaming box. Plus, it is well-suited to a networking configuration if you require a more complex setup. 

Not using a router? Plug in your Ethernet-compatible computer, HDTV, or game station directly into the DOCSIS 3.1 device (just make sure you’re running a VPN or firewall).

With the Motorola MB8600 you get flexibility and potential for higher internet speeds (up to 3.8 Gbps with a router that can bond Ethernet ports) as your cable ISP expands its technology. 

This is one of the best cable modems that can grow with your needs over time.

  • Active Queue Management with full-band capture digital tuner to enhance speed
  • Built-in surge and lightning strike protection
  • Built-in energy saving features
  • Four Ethernet ports
  • Network security to block denial of service attacks
  • Supports port bonding
  • CableLabs-certified
  • 2 x 2 OFDM (downstream x upstream channels)


  • Affordable
  • Dual compatibility with DOCSIS 3.1 and 3.0 (channel bonding)
  • Works with multiple cable ISPs (high compatibility with Xfinity, Cox and CableOne)
  • Broadcom chipset ensures compatibility with most WiFi routers (including mesh and gaming routers)
  • Design decreases overheating
  • USA-based tech support
  • 2-year warranty


  • No telephone jack
  • Not compatible with fiber optic, satellite or DSL service
  • Bulky and heavy, no wall mount capability

Noteworthy: This modem has four gigabit Ethernet ports (GigE). One is visible. Three are hidden under the yellow Ethernet ports label. Even with the extra ports, you can only connect to one device, such as a router or HDTV unless you have multiple IP addresses.

In that case, you can connect four IP-specific devices so you can get gigabit speeds. The extra Ethernet port options are also important if you have link aggregations group (LAG) devices designed for Ethernet port bonding to increase internet speed.

2. ARRIS SURFboard SBG8300 (Best Upgrade Option)

ARRIS SURFboard SBG8300 DOCSIS 3.1 Modem
  • A Trusted Name in Home Connectivity: Get high speeds, low latency, and a two-in-one product! With the...
  • Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem...
  • Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x...

Next up is an upgrade pick, the ARRIS SURFboard SB8300. It’s pricey, but when you consider the features of this DOCSIS 3.1 modem, it’s easy to see why.

First, it’s a dual modem-router capable of delivering direct internet speeds up to 4 Gbps (via four gigabit lan ports). It has a quick-connect app for easy WiFi management. You can even voice-manage WiFi settings with Alexa

As for wireless connectivity, the built-in router is equipped with a powerful Wave 2 AC2350 dual-band concurrent wireless antenna.  While this isn’t the latest Wifi 6 protocol, WiFi reception should not be a problem, even in medium to larger-sized homes.

In short, this cable modem has a ton of potential for future use as cable ISPs ramp up their speed delivery. It’s also a good pick if you have multiple devices or a large, tech-connected family.

The option to connect four wired devices and many more via WiFi at speeds up to 2350 Mbps is a plus.

This is perfect for someone who is app-savvy and prefers voice-activated network options.

  • Built-in dual-band concurrent AC2350 Wave 2 WiFi router
  • Alexa network-enabled for WiFi settings voice commands 
  • iOS and Android-compatible device management app
  • WiFi guest access
  • Preset WiFi security
  • 2 x 2 OFDM 


  • Simple color-coded design
  • Compatible with DOCSIS 3.0 channels (32 x 8 modem channels)
  • Works with multiple cable ISPs (high compatibility with Xfinity and Cox)
  • Simultaneous HD, 4K and VR streaming on the local network
  • 2-year warranty


  • More expensive
  • Users complain about app performance
  • Lacks multiple LED diagnostic indicators
  • Not compatible with fiber optic, satellite or DSL service
  • No telephone jack

Noteworthy: The device can handle download speeds of up to 10 Gbps, theoretically.

3. NETGEAR CM1000 (Best for Easy Set-Up)

  • Compatible with all major cable internet providers with internet speed up to 1Gbps. Currently certified...
  • Save monthly rental fees: Model CM1000 replaces your cable modem saving you up to dollar 168/year in...
  • Works with any Wi-Fi router: Connect any Wi-Fi router to this modem's Ethernet port to support all your...

The NETGEAR CM1000 offers simplicity. It has an easy, plug-and-play set-up and works with the WiFi router of your choice. This DOCSIS 3.1 modem is compatible with major cable ISPs such as Xfinity, Cox and Spectrum.

This is one of the older Netgear modems. Launched as NETGEAR’s first DOCSIS 3.1 modem, it has a good track record of performance. It is known for ease of use and high customer satisfaction.

And, if your cable ISP is still delivering DOCSIS 3.0 signals, this modem is compatible. 

This is a good option for non-tech users who like to watch 4K HD streaming videos and enjoy gaming, but crave simple functionality from their DOCSIS 3.1 gigabit modem.


  • One 1-gigabit Ethernet port to get gigabit speeds
  • 5 LED status lights
  • Coaxial cable connection
  • Windows, Mac and TCP/IP network compatible
  • 2 x 2 OFDM 
  • Compatible with Comcast Xfinity and others


  • Affordable
  • Compatible with DOCSIS 3.0 channels (32 x 8 modem channels)
  • Works with multiple cable ISPs
  • FCC/UL-certified
  • 1-year warranty


  • You must pay for tech support
  • No telephone jack
  • Not compatible with fiber optic, satellite or DSL service
  • Lacks multiple Ethernet ports

Noteworthy: It’s certified by Comcast Xfinity and best suited to the Gigabit, Blast, and Extreme plans.

4. NETGEAR Orbi CBR750 (Best Modem-Router Combo)

NETGEAR Orbi CBR750 DOCSIS 3.1 Modem and WiFi 6 Router Combo
1,558 Reviews
NETGEAR Orbi CBR750 DOCSIS 3.1 Modem and WiFi 6 Router Combo
  • Integrated cable modem and WiFi 6 router provides high-performance WiFi coverage for up to 2,500 sq. ft....
  • DOCSIS 3.1 modem supports Internet plans up to 4Gbps and is compatible with most cable service providers....
  • Fast AX4200 Gigabit speed with WiFi 6 technology for uninterrupted streaming, HD video gaming, and web...

There are many options for modem-router combos, but the NETGEAR Orbi is a head-turner. It’s not your standard-looking device. It has a modern appeal that can blend in with any decor.

What’s more exciting is the technology under the hood of this modem-router combo. It delivers three dedicated WiFi bands on the latest WiFi 6 protocol. This cuts down on network congestion and interference between devices under one roof.

The modem boasts up to 10 Gbps download speeds. Orbi delivers up to 4.2 Gbps for direct-connected devices.

This modem-router combo covers up to 3,000 square feet. But, if you have a larger home, Netgear offers a pre-configured access point called the Orbi WiFi 6 Satellite that will extend coverage an additional 2,500 square feet.

Orbi uses a mesh technology allowing you to connect 40+ devices and enjoy connectivity inside or outside of your home. The device works with most major cable ISPs, supporting plans of up to 6 Gbps.

It’s also backwards compatible to lower internet speeds and has four Ethernet ports.

This modem-router combo is ideal for the person who doesn’t want to figure out which cable modem and router have the best compatibility. It has already been done for you. Besides that, it’s a winner in an environment with multiple WiFi users.


  • Four 1-gigabit Ethernet ports
  • 1.4 GHz Quad-Core processor
  • Tri-band WiFi 6
  • Beamforming capable
  • Guest WiFi access
  • VPN capability (with NETGEAR Armor subscription)
  • High compatibility with Comcast Xfinity, Cox and Spectrum


  • 90 days complimentary tech support
  • Built for expansion
  • Works with multiple cable ISPs
  • Compatible with DOCSIS 3.1 and 3.0 channels (32 x 8 modem channels)
  • 2021 CES Innovation Award winner


  • Customer support complaints
  • Device quality and connectivity issues
  • May require frequent reboots (according to reviews)
  • Not compatible with fiber optic, satellite or DSL service

Noteworthy: Comes with 30-day free trial of cybersecurity software (NETGEAR Armor). After the trial you have the option to get an affordable yearly subscription that covers an unlimited number of devices. It also can locate, lock, or wipe data from misplaced or stolen Android and Windows devices.

5. ARRIS SURFboard SB8200 (Best Budget-Friendly Option)

ARRIS SURFboard SB8200 DOCSIS 3.1 Modem
  • A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard SB8200 DOCSIS...
  • Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem...
  • Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x...

The ARRIS SURFBoard SB8200 delivers cable speeds of up to two Gbps affordably. You can choose to connect your device directly to the DOCSIS 3.1 gigabit modem for internet access. If you want to connect multiple devices, you will need a router.

With download speeds up to 10 Gbps and two Ethernet ports, you can have smooth streaming experiences whether catching an HD movie, browsing the web or gaming online with your friends.

This is one of the best cable modems that is compatible with DOCSIS 3.0, making it flexible to function at lesser speeds. 


  • Two 1-gigabit Ethernet ports
  • Supports IPv4 and IPv6
  • 4 LED status lights
  • Coaxial cable connection
  • Windows, Mac and Linux compatible
  • 2 x 2 OFDM 
  • High compatibility with Comcast Xfinity and Cox


  • 2-year warranty
  • Easy to set up
  • Compatible with DOCSIS 3.0 channels (32 x 8 modem channels)
  • Works with multiple cable ISPs
  • Simple color-coded design
  • Built-in energy saving features
  • FCC/UL-certified


  • No telephone jack
  • Not compatible with fiber optic, satellite or DSL service

Noteworthy: You will need to have two registered IP addresses from your cable ISP to reach 2 Gbps with this DOCSIS 3.1 modem.

Before You Buy Tips

Here are a few tips we thought of that may help you as you consider which DOCSIS 3.1 modem to purchase.

Check with Your Cable ISP

If your cable ISP isn’t offering gigabit service just yet, be sure to purchase a cable modem with backwards compatibility to DOCSIS 3.0. If your service is provided by DSL or fiber optics, DOCSIS 3.1 gigabit modems will not work.

Ask Questions

To choose the best DOCSIS 3.1 modem for your needs, answer these questions:

  • Is your cable ISP offering gigabit service?
  • Do you require cable digital voice service?
  • Will it work with my internet plan?
  • Can it help me get the fastest speeds?
  • How many devices will your modem need to support?
  • What is your budget?
  • Do you prefer a basic cable modem or modem-router combo?
  • How many square feet must the device cover?
  • Do you plan to use LAG devices for port bonding?
  • Do you require free technical support?
  • Are you technically-inclined and able to troubleshoot your own device?
  • What is the return policy and warranty?

These are just a few things to consider to help you make the best choice. Let your answer guide you as you compare features of the best DOCSIS 3.1 modems.

Check Compatibility

Before you purchase, make sure to check compatibility with your internet plan. Also, inquire about a timeframe for a rollout of the DOCSIS 3.1 as a standard. In some cases, cable internet service providers will require use of their devices to access the technology.

One of the most important things to know is whether your cable internet provider supports a “bring your own modem” environment. If it doesn’t, and you prefer to buy your own modem and router, check for other cable internet service providers in your area.

Ultimately, you don’t want to choose any devices that won’t work with your local internet plans.


DOCSIS 3.0 is still the standard for many cable internet providers. As cable companies launch into gigabit internet plans with increased speeds, having a DOCSIS 3.1 modem is a good investment to cover future speed demands.

Doing research before you make your purchase is essential. Also, take your time. No matter which DOCSIS 3.1 modem you choose, any of the options above are excellent.