12 Best DOCSIS 3.1 modems in 2021 – Overview

If you’re a freelance professional or a professional gamer, you probably need a better modem to work and play more comfortably, smoothly and quickly. Due to the subsidy, the adaptation of DOCSIS 3.1 MODEM is becoming increasingly necessary.

That’s the trend, and it’s something you absolutely must do to meet the growing demands of today’s advanced technology.

While many cable operators lease them in their high frequency areas, we have a better procurement solution that is relatively cheap, reasonable and sustainable.

Here are the 12 best DOCSIS 3.1 modems that will help you increase your internet access speed. Check out the products below to find the ones that work best for you.



Exhibitions 1.65* 5.24* 5.24 inches
Weight 0,84 kg
Voltage 12 V
Ethernet ports 2 Connections
Batteries 1 lithium-ion battery

Servicing gearboxes like the Aris SB8200 is generally recommended by all suppliers, making it the default choice for most configurations. With maximum download and transfer speeds of up to 2 Gbps, the SB8200 can handle any high-end internet package.

Unfortunately, the satellite internet environment may affect your performance before you build this modem, so some of the highlights are yet to come.

This configuration is facilitated by the LED main display which controls, receives, transmits and marks the internet. The modem runs slightly warmer, but this can be minimized by having less space in the office where air circulation is improved.

Apart from this problem, the SB8200 is certainly an excellent model compared to other Doxis 3.1 modems and does not provide a limited number of results. When connected to a Gigabit switch, customers can connect faster without having to rent a single device.

This device is equipped with the latest hardware, including Broadcom’s BCM 3390 chipset, allowing Intel’s Puma 6 SB6190 chipset to operate at full speed, making it one of the best DOCSIS 3.1 modems on the market. The SB8200 has two Ethernet ports that can be used to deliver Gigabit speeds to two different businesses.

With the modem interface, the storage system can achieve the above 2 Gbit/s throughput by connecting both Ethernet ports to the same source.


  • Exceptional processor
  • Simple configuration
  • Two huge Ethernet ports


  • It’s a little warmer.
  • General connection not entered, out of the box.



Exhibitions 9.72 x 4.06 x 9.5 inches
Weight 1.17 kg
Voltage 115 V
Ethernet ports 4 Connections

The ARRIS SURFboard SBG7600 has many marking options for Aris, but loses one port to the Motorola MB8600 because it only has four ports, although you may need them all. However, thanks to the four ports, you cannot rely on LinkedIn’s advanced language management.

This modem applies to all major US satellite internet services and is a big exception – this includes Exfinity, Spectrum, Cox and others, but you still need expert internet access.

The downside is that this modem is not available on a fiber, DSL, CenturyLink, Verizon or ATT network.

However, this is not significant, as you can expect 8 channels up and 32 channels down.

This DOCSIS 2.1 modem is compatible with digital data rates up to 600 Mbps, indicating that frequency issues for gaming, surfing and streaming should be corrected.


  • the highest broadband speeds
  • easy installation
  • Supports up to 45 devices


  • Problems related to the use of spectrum networks
  • heats up if it doesn’t restart

MOTOROLA MB8600 – Best Motorola DOCSIS 3.1Modem


Exhibitions 7.9 x 2.2 x 7.2 inches
Weight 0,141 kg
Voltage 240 V
Ethernet ports 4 Connections
ASIN B0723599RQ

First, the Motorola MB8600 was one of the most connected modems which led to the Doxis 3.1 update. Even if the modem is configured for speeds up to 6 Gbps, ISP equipment can handle huge speeds with current plans without forgetting their responsibilities.

Standout supports the maintenance of 32 x 8 channels, which is included in the OFDM upgrade. The combination of system management allows to achieve the best data rates by sending beams over a wide range of information channels with low passivity and fast output.

In addition, the AQM or Active Queue Management modem has been updated to ensure minimal ping in games, fast page rendering and excellent web play.

Motorola is aiming for a fast Ethernet port that can be limited to more settings. However, the system’s management logic and exhibits undermine the finesse of Broadcom’s excellent and reliable chipset.

However, the DOCSIS 3.1 update offers better built-in security features and is equipped to deal with DDoS, DNS fading and various threats.

The MB8600 has an Ethernet port for each switch. The Motorola modem has an elegant vertical layout and does not take long to gather the information needed for installation.


  • Supports 1Gbps associations
  • Low inactivity Active queue management
  • A simple layout


  • Uneconomical with many others
  • Ethernet ports cannot be connected to many gadgets

NETGEAR CM1000 – Best NetGear DOCSIS 3.1 Modem


Exhibitions 8.8 x 5.4 x 5.9 inches
Weight 0.38 kg
Voltage 240 V
Ethernet ports 1 x Gigabit Ethernet port with auto positioning

Performance is limited to 1 Gbps and does not include multi-gigabit plans. The main difference between the CM1000-1AZNAS and the current CM1100 is that the CM1000-1AZNAS has only one Gigabit Ethernet port for signaling to a switch.

In an unusual scenario in Netgear’s heavy download cycle, the company gave away two free multi-gigabyte modems before most of the innovation reached U.S. homes.

The NetGear CM1000-1AZNAS is one of the best DOCSIS 3.1 modems and was the first gigabyte modem on the market.

However, you can access it in a limited way, and generally the default client doesn’t need two great port connections to enjoy 4K gaming and streaming.

Aside from this distinction, the Netgear CM1000-1AZNAS actually stocks 32 × 8 channels, and this pertains to administrations similar to the particular model. It includes 2 updates to OFDM, an additional information encoding technology that reduces the inactivity of Doxis 3.1 devices.


  • Coordinated security updates
  • Supports OFDM 2 x 2 innovation
  • A quick mooring


  • An Ethernet port does not take into account the structure of the interface.
  • Not implied for large remote events

NETGEAR Nighthawk C7000 – DOCSIS 3.1 Modem


Exhibitions 9.66 x 8.31 x 1.70 inches
Weight 0,725 kg
Voltage 12 V
Ethernet ports 4 Connections

Nettinger’s Nighthawk C7000 Combo Router Modem is the best way to bring the business experience to your home or office. With the Doxis 3.1 update, the digital web gadget is an excellent addition to some ISP plans with up to 400 Mbps.

The Netflix Nighthawk C7000 Combo Spectrum Modem Router offers Exfinity web packs that incorporate the design and enhancements of the Cox and Comcast ISPs. You can use this gadget for any configuration with data rates up to 400 Mbps when using a modem.

While some sites have documented the modem’s recent upgrade to Docsis 3.0, a newer version of the Netanger Nighthawk C7000 Modem-Router Combo with Dotcis 3.1 is available to all. However, regressive parity confirms that Docsis is included in the 3.0 update. It is the best control integration that leads to innovative advances in the system.

The latest Broadcom BCM 3384 processor is paired with a 1.6 GHz memory that supports 128 MB of RAM, stores settings and firmware, and is NAT compatible for data collection.

In total, you have access to 256 MB of the frame. Besides the current standby setting, the switch works chaotically on the wheels, the civilization of the AC1900 configuration.

As for the port plan, you have access to four Gigabit Ethernet slots, allowing you to take advantage of and reduce the cost of a fast channel with reversible cable.


  • Slippery gadget
  • An amazing port development
  • A solid processor


  • Dear
  • Transmits additional MU-MIMO to support

Netgear Nighthawk CM1200 – DOCSIS 3.1 Modem


Exhibitions 6.1 x 3.4 x 10.3 inches
Weight 1,020 kg
Voltage 100240 Volt
Ethernet ports 4 Connections

Netgear is one of the most reliable brands in system management, and their upgrade to the Gigabyte Nighthawk CM1200 modem says : Best in its class.

It differs from other Doxis 3.1 modems in that it has four 1 Gb Ethernet ports that provide maximum virtual data flow and 2 Gb upstream. Connect the two upper Ethernet ports to the switch.

However, this does not mean that the RSP does not currently support upgrades, suggesting that the modem is in the 1 Gbps range, but could be locked down by upgrades in the future.

By default, the Ethernet port is reserved for optimal use, so the CM1200 actually has two Ethernet ports.

Despite this obstacle, the CM1200 remains the most functional modem and is ideal for HD streaming, gaming and document sharing.

2 OFDM (an innovative information encoding technology that reduces the inactivity of Doxis 3.1 gadgets) reduces the impedance of the characters.

This means lower peaks and shorter loading times for the customer. This modem is very well ventilated and has a clear LED display for searching. It’s very bright in a dark room, so stack it too far away if it seems where it’s bothering you.


  • Great similarities
  • Heat transfer structure
  • Support for FOMD innovations


  • Two Gig ports are designed for interface accumulation
  • It’s not accompanied by the voice

Netgear Nighthawk CM1150V – Best DOCSIS 3.1Modem


Exhibitions 6.1 x 10.3 x 3.4 inches
Weight 0,45 kg
Voltage 100240 Volt
Ethernet ports 4 Connections

If your specialized business has the framework to generate speeds up to 2 Gbps, this modem can be a very small package. From a design standpoint, install the Innovation Diversion Holding 32 x 8.

With the 4096 QAM and OFDM compatible upgrade, the modem can achieve download speeds of up to 10 Gbps, with ISP limits set accordingly and speeds dependent on the switch type.

As for ports, our experts are happy to see 4 gigabytes in the modem itself. Nonetheless, Netgear Interface Commolation supports the aggregation of individual 2G revenues into 1G alliances with appropriate vendor licenses.

This multigig mod also includes Doxis 3.1 Tech’s Civilization of Active Queue Management, which limits inactivity and game pings to this post.

In terms of design, the Netgear Nighthawk CM1150V has a vertical structure and a weight of 33 1.33. However, if you need proof of current web configuration in the future, g is the best modem to consider.


  • Speed
  • simple procedure
  • charming


  • Exclusive to Comcast
  • Do not try to work with DSL

Netgear Nighthawk C7800 Modem Router Combo – DOCSIS Combo 3.1 Modem


Exhibitions 10.4 x 7.5 x 12.4 inches
Weight 1.42 kg
Ethernet ports 4 Connections
Batteries 1 lithium-ion battery

NetGear’s first Nighthawk C7800 modem switch with Doxis 3.1 support. While we generally recommend buying and switching to another modem for easier testing, this combo box is a common choice for those who want to bring their business up to the latest standards.

The Nighthawk C7800 switch is similar to Netgear’s Nighthawk CM1200 switch, so you now have the option of getting a cheap multi-gigabyte switch, which was better than buying the CM1200 at the time.

For high-speed switch connectivity, the C7800 is equipped with a dual-band AC-3200 switch that delivers up to 1 Gbps in the 2.4 GHz and 5 GHz bands.

The range is very wide and usually has several options. Only the quality service mode for processing certain traffic is completely lost.

Surprisingly, the switch is an obstacle for the modem, which can go up to 6 Gbps thanks to its revolutionary 1.5 GHz processor and 32 × 8-channel carrier. The hidden switch can support speeds up to 3.2 Gbps, and most ISPs can support speeds up to 1 Gbps, so they will all be turned off in the future until Internet packets reach these emergency devices quickly.

The modem has four multi-gigabyte Ethernet ports, although the gadget’s interface doesn’t fit and therefore it’s not possible to use them for multi-gigabyte cable symbols. It is based on OFDM, a computer-aided data encryption strategy that reduces the inactivity of Doxis 3.1 devices.

Arris SURFboard SBG8300 Combo Modem Router – Arris DOCSIS 3.1 Modem


Exhibitions 2.87 x 8 x 9.33 inches
Weight 1,46 kg
Voltage 115 V
Ethernet ports 4 Connections

The ARRIS Surfboard SBG8300 is one of the most recognizable modems with speeds up to 4 Gbps and the tools to maintain ISP parity.

All communications professionals will be considered, including agreements between Comcast Expinity, Cox Web, Gigablast Plan and Spectrum.

Ideally, the conventional Doxis 3.1 modem guarantees a download speed of 10 gbps and a transmission speed of 1 gbps. Since the control of the SBG8300 FAI limits the ARRIS surfboard, the surfboard is regularly modified.

However, given the innovations in the chain, the speed is still commendable, as this combined modem switch is already available at 1.7 Gbps.

This Doxis 3.1 modem provides 32 x 8 simultaneously and works as an attachment with OFDM update to repeat multiple data packets like Doxis 3.0.

Nonetheless, our experts are looking forward to the 10G experience to fully utilize the potential of this combo.

The Wi-Fi 5 dual-band standard is not suitable for working with Wi-Fi configurations. However, the wave 2 innovation provides a 160 MHz data channel that passively enables higher remote access speeds.

The idea is to access the 4 Jigs space to make instant associations with old gadgets and PCs.

Other creative features of this 2-in-1 gadget include its incredible energy effect, Grace Dose 3.1 convention, and high-end safety features.

In general, it could be a modem recognizable in our roundabout and attached to it like a brake switch. Although it exceeds the Wi-Fi 6 standard, the ARRIS Surfaceboard SBG8300 justifies a reasonable sticker price.


  • AC2350 implicit connector
  • OFDM innovation reduces sleepiness
  • A simple layout


  • Not feasible with Verizon.
  • The unit operates in warm mode

Netgear CM1100 – Best DOCSIS 3.1 Modem


Exhibitions 10 x 7 x 5 inches
Weight 0,91 kg
Voltage 240 V
Ethernet ports 2 Connections

The Netgear Nighthawk CM1100 is one of the most sensitive doxis 3.1 modems you can buy if you want to load up to 2Gbps, which increases the capabilities of Cox Internet, Spectrum and Comcast.

Although the Doxis 3.1 modems responsible for the OFDM upgrade are capable of supporting download speeds of up to 10 Gbps, this is more of a future testing step. If there is a link, there is a framework to maintain ISOP time compatibility.

Currently, with each new addition, the 32 x 8 channel can reach speeds in excess of 1 Gbit/s. The Channel Holding Club 4096 QAM and OFDM padding guarantee fast packet transmission in the 192 MHz band. The Nighthawk CM1100 Reverse, whose plans are supported by the respective trade association, is also cost-effective.

In terms of functionality, this modem comes with the Connect Color Upholstery, which combines two huge Ethernet ports and looks even better. Therefore, if you want to make wired connections, you can achieve speeds up to 2 Gbps, depending on the documentation of the provider concerned.

If you want to set up a remote business, all Wi-Fi AC and Wi-Fi AX switches are available with the Nighthawk CM1100. In terms of parameters and companies, it is a simple modem that you can work with.

All in all, the Netgear Nighthawk CM1100 is a standard, stand-alone switch that can keep your home and business network running at a reasonable price. However, a well-structured modem provides elegant flexibility and limits printing.


  • Well-ventilated.
  • Fully compatible
  • robust and of high quality


  • Low-RAM
  • No built-in Wi-Fi router

Netgear CAX80 – DOCSIS 3.1 Modem


Exhibitions 10.4 x 8.5 x 4.3 inches
Weight 1.16 kg
Voltage 12 V
Ethernet ports 4 Connections

This switch is ideal for getting the best speeds near 2 Gbps and is great for ISPs. While virtual download and transfer speeds of 10Gbps and 1Gbps are not currently possible, Doxis 3.1 offers the opportunity to test this gadget in the future.

The holding channels for the associated modem + switch combination allow for 32 uplinks and 8 downlinks.

Channel preservation support broadens the range of communication channels, reducing the slowness and inactivity of these types of settings.

In addition to the modem’s capabilities, all you need is a special switch to upgrade the AX Wi-Fi, even if it’s 3,000 square feet.

With the 4-channel MU-MIMO extension, you can connect to more than 45 devices without any delay and without compromising quality.

The Nighthawk CAX80 is a dual-band modem that can only reach the 6 Gbps allowed by the ISP.

This combination highlights four huge Ethernet fields in terms of ports, followed by the production of 2.5 thousand +.

While giant ports are quickly becoming a guarantee for cable connections, the multi-gig port comes with a commitment to focus more on needs like gaming and streaming.

It has a USB 3.0 port for a fee and allows you to connect a game box, printer or other heritage gadgets for free.

Notwithstanding the above information, this combination contributes to the update of the OFDM. This extension includes a modem that allows more information to be sent on each channel on the same frequency.

It’s not a slight downsizing of the lookout either, and it weighs about 2.60 pounds, making it heavier than expected.

Overall, the Netgear Nighthawk CAX80 outperformed other modem+switch combinations in our series of tests, with good predictions, long range, limited idle performance, and improved power efficiency.


  • high speeds
  • Wide coverage
  • 30+ Wireless Connections


  • Take your time when setting up
  • The big moment

ARRIS SBT25 – best DOCSIS 3.1 modem 1


Exhibitions 11.22 x 7.52 x 2.72 inches
Weight 0,77 kg
Channels 32 downstream, 8 upstream
Ethernet ports 2 Connections

The ARRIS SURFboard T25 is one of those gadgets that offers outstanding hardware quality and exceptional support for low-level and location-specific voice management.

This ARRIS DOCSIS 3.1 modem has many similarities and works well with Comcast Exfinity Internet and voice administrations.

It’s not fair to distinguish it from other satellite providers, because its Comcast clean rates and performance deserve all the credit.

However, to fully realize the potential of the ARRIS SURFboard T25, it is important to choose a basic Comcast concert information plan.

Depending on mechanical integration, this modem is faster than a Doxis 3.0 modem in a 2 x 2 OFDM upgrade and has additional data packets relative to each channel of a single 192 MHz quadrature amplitude modulation carrier.

As of now, the latest update paves the way for VoIP traffic without compromising on the ISP’s tremendous speed.

Intel devices provide complete and accurate processing of transmission logic and system management. You get two Ethernet rooms with workflow capabilities. ARFIS allocates two ports for communication with the Exfinity voice plan.

In total, the ARRIS SURFboard T25 is available as a single modem for all remote switches on the survey platform. While the Doxis 3.1 update is not an essential part of the ISP, it provides exceptional exfoliation to Comcast and is not significantly focused on management planning.


  • look good
  • failsafe
  • sturdy construction


  • Lack of broad compatibility
  • Superb


Is Doxis 3 or Doxis 3.1 better?

Docsis 3.1 is undoubtedly better and offers significantly faster speeds than Docsis 3, including more efficient use of the data spectrum, resulting in more data transfer over your network.

Does the cable system need to be upgraded to implement DOCSIS 3.1 technology?

No, DOCSIS 3.1 innovations do not need to be transferred to the HFC system to work. In addition, DOCSIS 3.1 can use HFC network upgrades to extend the network boundary.

Is it worth buying a DOCSIS 3.1 modem for packages with lower ISP speeds?

It’s a great option to consider if you can afford it. It works well if you have a 250 Mbps+ service that offers better speeds and signals and is more reliable.

Is a good modem important?

It really makes a difference by offering faster internet speeds and more reliable WIFI. It can also help you in the case of frequent dropouts. Either way, it probably won’t speed up your physical connection to the internet. A bad Internet connection can have several causes, for example B. the speed level of the NBN you are currently working with.

How often should I replace my modem?

You should replace it at least every 2 or 3 years, otherwise you run the risk of your old modem becoming obsolete and breaking down, leaving you with no internet access or a poor connection.


To help you compare, here are some buying tips. Here are the things you should consider when choosing the best Docsis 3.1 modem for you.


The first thing to consider is whether the modem you choose is compatible with your cable internet provider or not. Otherwise, this modem is useless to you because you cannot activate it.

Modem manufacturers also provide a list of ISPS that can work with their modems.

Another thing to consider is the gigabit internet package provided by the ISP you plan to work with to ensure full compatibility.


The Ethernet ports offered by the modem you want to buy will also play an important role in your purchase decision. This feature allows you to determine how many devices you can connect through a modem for a fast cable connection.

The Docsis 3.1 modem normally has 1, 2 or 4 Ethernet ports. However, if you choose a single-port modem, you will need to connect a router to allow for multiple connections. In some cases, in general,

NETGEAR offers Link Aggregation, which allows you to use half of the available ports for faster Gigabit Ethernet connectivity.


Equipped with the Broadcom chipset provided by the cable modem, the link modem helps increase the security of your network and provides insurance against denial of service (DoS) attacks.

If you are considering a modem with a router, make sure it supports the WEP and WPA/WPA2 wireless security protocols to prevent unauthorized users from accessing data.


It is also possible to buy a device with a modem and a router in one. This is obviously cost effective and avoids the need to disconnect various devices to ensure smooth operation.

However, unlike individual modems and routers, these combinations have the problem of ease of upgrading. But it depends on what suits you best, as it is a matter of personal choice, so there is nothing to worry about.


In addition to the other features, don’t forget to check your schedule online. Let me tell you why this is important. If you choose a modem designed for high speeds, but your internet package can’t maintain those speeds, it means you probably can’t take full advantage of what’s available.

A whole range of modems are compatible with gigabyte packets up to 2 Gbit/s. To benefit from better speeds, subscribe to appropriate packages.


Last but not least, you should consider the price of each Docsis 3.1 modem to get a more realistic picture, as everyone has a specific budget for each product. So, think about your budget and the cost of these modems and choose the best one that suits you and offers all the features you need.


Here we give you all the necessary information and advice on the best DOCSIS MODEL 3.1. We’ve covered every possible aspect of simplifying your solution, but now it’s your turn to choose the best brand and compatible modem for your budget.

We’re always here for you if you have any questions, so let us know what you think in the comments section. We hope this article of the best 3.1 modem doctrines will be useful to you and that you will get the modem you need to solve all your network problems.


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