8 Best DOCSIS 3.0 Modems in 2021

One of the major challenges that internet users are embracing is the use of non-rented modems. Instead of renting modems, many people prefer having theirs as they save in cost in the long run. There are several current modem technologies giving us DOCSIS 3.0, DOCSIS 3.1 modems among other older specifications.

When using a rented modem, you will pay an extra amount from the package you use every month. Therefore, eliminating this cost will be a saving in the long-run.

Different modems come with different abilities, which are dependent on modem technology. DOCSIS 3.0 technology is known for handling high speeds. DOCSIS 3.1 is a better and more current technology as it offers extra support to your devices in addition to supporting Gigabit internet plans.

We have invested in bringing you the best modems for DOCSIS 3.0. They are known for offering reliable and high internet speeds. Below are our choices.

The best DOCSIS 3.0 modems

DOCSIS 3.0 ModemsSpecificationsCheck it out on Amazon
Motorola MG7550 Modem RouterBest DOCSIS 3.0 Modem routerCHECK IT OUT
Netgear C6250 Cable modem routerBest DOCSIS 3.0 modem router for compatibility with many ISPsCHECK IT OUT
D-Link DCM-301 ModemBest budget DOCSIS 3.0 modemCHECK IT OUT
Arris Surfboard SB6141 Cable modemBest budget modem for durabilityCHECK IT OUT
Motorola MB7621 ModemBest for internet plans of up to 650MbpsCHECK IT OUT
ARRIS SURFboard SVG2482AC Cable Modem routerBest DOCSIS 3.0 modem router for XfinityCHECK IT OUT
Netgear CM500 Cable modemBest for internet plans of up to 300MbpsCHECK IT OUT
Arris Surfboard SB6163 Cable ModemBest DOCSIS 3.0 modem for ISP plans of up to 400MbpsCHECK IT OUT

Motorola MG7550 Modem Router

Motorola MG7550 Cable modem: Best DOCSIS 3.0 modem router combo for gaming

When looking for the highest performing modems, this model features. It also comes from a brand that is of excellent quality. This model, therefore, comes not only as the best DOCSIS 3.0 modem but also as a router.

The gigabit router is built for service assists the projection of high internet speeds of up to 1,900 Mbps. You will therefore have no worries of connection of devices as it also has a dual-band. Handling of high speeds is, therefore, the loveliest thing with this modem.

Chances of having attacks also get limited to a high degree.  It features a firewall, power boost, and Broadcom chipset. The chances of having attacks, therefore, get limited to a very high degree. Performance is also exceptional.

You will also appreciate the compatibility of the modem router. It enhances the connection to many devices that can connect to Wi-Fi technology. Another lovely thing is that the modem router also ensures you can use many ISPs and is recommended for ISP plans of up to 375 Mbps.

The design of the Motorola MG7550 cable modem router (available on Amazon) is also lovely as it saves on space. Therefore, you will find it pleasant to use a modem router that ensures you enjoy high internet speeds and saves on space. A lovely thing about this model is that it is performance-based as it does not overheat.


  • Has a lovely design vertical design?
  • Serves as a modem and also a router
  • Has high internet speeds
  • Simple set up and management process
  • Offers a lovely compatibility
  • Technologies such as beamforming that enhance the range


  • Limited to working with some ISPs
  • Has no telephone port

Netgear C6250 Cable modem router combo

Netgear C6250 Cable modem router: Best DOCSIS 3.0 modem router for ISP compatibility

Apart from the Motorola brand, the Netgear brand is also an excellent performer as it offers greatness in terms of quality. This model comes with a lovely design, which is key to its performance. A sieve-like and vertical look ensures that the model performs best without overheating.

The model comes with both a modem and a router. You will love it because of its compatibility with cable ISPs. Support to plans of up to 300 Mbps is fantastic as it enhances optimal performance. Using this model helps in saving the cost of buying a separate router and rental


A fantastic thing about this model is the fantastic Wi-Fi speeds. On coverage of 1500 square feet, you will have support for over 25 devices. The Wi-Fi speeds also get multiplied to 1600 Mbps and serve with a lot of stability.

The modem is therefore built for performance that gets further amplified by the DOCSIS 3.0. The versatility of the connections is something that you will also love this model. The presence of the 2 gigabit Ethernet ports and a USB port makes connections more versatile and reliable.

You will, therefore, be connected to the cloud storage and your wired devices. For serious streaming, the model proves to be an ideal choice because of its high performance. For gaming and other tasks, you will have lots of fun.

Finally, the security of the modem router is fantastic. Observation of the WPA/WPA2 and WEP makes the model one of the best. You can also implement measures such as parental controls and many more.


  • Has a fantastic design
  • Offers simplicity in use
  • Comfortable to set up and manage
  • Offers awesome safety
  • Lovely Wi-Fi speeds


  • Needs an improvement on the internet speeds

D-Link DCM-301 DOCSIS 3.0 Modem

D-Link DOCSIS 3.0 Cable Modem (DCM-301): Best budget DOCSIS 3.0 modem

D-Link is one of the best performing brands in the internet connection category. This model is one of those that will offer you a superb service. It has a design that is horizontal and very captivating.

One thing you will love it for is its quality of service. It has a design that is specifically designed to facilitate its performance. A sieve-like design wraps it all up by ensuring that the performance is excellent and to the maximum.

One thing about this model that may discourage you is that it does not have a wireless router. All its connections, therefore, require cables to be connected. It is compatible with most ISPs except a few; hence need to confirm with your ISP before buying it.

For both upstream and downstream, the model offers excellent speeds. For downstream, you will enjoy 30 Mbps, while for upstream, you will have up to 160Mbps. All US cable providers work perfectly with this model.

You will also love the presence of the gigabit port that enhances high speeds of performance. Using it will therefore make most of your wired devices perform to the maximum. Buying an external router is one of the best things you will do with this model.


  • Has a lovely design
  • Offers stability to connected devices because of the gigabit port
  • Offers simplicity of use as you plug it
  • Maximum upload and download speeds
  • Fantastic plans


  • No Wi-Fi router
  • Has compatibility challenges

Arris Surfboard SB6141 Cable modem

Motorola Surfboard SB6141 DOCSIS 3.0 Cable Modem for Durability

In terms of performance, this is one of the models that will offer you an excellent service. The vertical design and the shape tell you that the model is an outstanding performer. It features LEDs that help you to assess the performance of the model.

Universal compatibility with ISPs is something that you will always enjoy when using this router. Although it does not work with some ISPs, those which it supports enjoy a superb service. It offers simplicity in terms of connections.

This model does not have a Wi-Fi router hence the need to get a separate one. However, you will appreciate the presence of the Gigabit Ethernet port that ensures you can easily connect to your router and other devices.

For both downloads and uploads, this model seems to be a better performer. It has eight download and upload channels that facilitate high speeds. Download speeds stand at 343 Mbps, while the uploads are 131 Mbps. The model is recommended for plans up to 100 Mbps.


  • Fantastic quality
  • Fast speeds for uploads and downloads
  • Offers simplicity of set up
  • The connection is reliable.
  • Has a lovely design with LEDs


  • The plans speed may not be adequate
  • Compatibility challenges with ISPs

Motorola MB7621 Modem

Motorola MB7621 Modem: Best DOCSIS 3.0 modem for plans of up to speeds up to 650 Mbps

Looking at this Motorola model, you get attracted to have it in your home. It has a lovely vertical design that makes it one of the gorgeous models. With download speeds of 1000 Mbps, this model boasts of being one of those that will offer remarkable services.

For cable plans, the model is superb as it supports speeds of up to 650 Mbps. It offers a full band and a digital tuner that makes its performance remarkable. The connection is, therefore, quite reliable.

Due to high performance, the modem makes the ideal choice. Using Ethernet ports, you will have all your devices quickly connected and performing to the best. It makes a perfect choice for streaming, gaming, and access points.

Moreover, the model comes in a compact design. It will therefore save much of your space for other items. Chances of having the model overheating get limited to a great extent. Home aesthetics with this model get a perfect amplification.

Enjoy a fast set up and management process with this model. You will quickly have all the cables plugged in and performing to the maximum.


  • Has a lovely vertical design
  • Setting it up and managing it is a straightforward process
  • Boasts of a compact design
  • Beautiful when used at home
  • Excellent plan speeds support


  • No Wi-Fi router
  • Compatibility challenges with some ISPs

Arris SURFboard SVG2482AC modem router

ARRIS SURFboard SVG2482AC DOCSIS 3.0 Cable Modem: Best for Xfinity

The plain white color is unique. If you are among the people whose primary focus when buying modem routers and the modem is beauty, this model is for you. You will love its modern design, and the performance will leave you amazed.

The device comes with a modem and a router. You, therefore, do not need to have a separate router. You will find it ideal in terms of saving cost because you will not buy an extra router and pay monthly rental fees.

One lovely thing with the model is that it has 4 Gigabit Ethernet ports and a telephone jack. You will, therefore, have a simple connection to your routers and wired devices. It is compatible with all Wi-Fi and wired devices but not all ISPs.

Apart from being a modem router, it also serves as an access point. It features 24 downstream and eight upstream channels. You will, therefore, comfortably download and upload your content.

In terms of speed, this device is fantastic. You will love it because it supports plans of up to 600Mbps. The router has higher speeds too. Using the modem router for gaming and streaming your content gives fantastic outcomes.


  • Has 4-gigabit ports and USB for data transfer
  • The simplicity of set up
  • Plans of up to 600 Mbps and 1750Mbps for the router
  • Dual-band for device prioritization
  • Reliable connection over a more comprehensive range


  • It is pricier

Netgear CM500 Cable modem

Netgear CM500 Cable modem: Best for internet plans of up to 300Mbps

You probably have been looking for an affordable modem. This Netgear model boasts of powerful performance and a very reliable price. You will love it because it offers support to plans up to 300 Mbps.

If you are looking for an affordable replacing choice, this one is the most ideal. It is compatible with all Wi-Fi routers and is designed for performance. You will, therefore, have it offering a reliable and remarkable service.

Connections to this modem are straightforward. You will appreciate the role of the Ethernet ports in offering a reliable connection. All you will do is plug each port in the right position, and you will be set. The only thing that may need configuration is your router.

Connections that get implemented using the Ethernet ports are usually very stable. Your computers and game consoles, therefore, have a superb performance. It also supports all your devices hence quite reliable.

Moreover, the model has fantastic security. Each connected device will, therefore, enjoy a fast and reliable connection with perfect security. Getting a secure router will, therefore, make the internet safest.


  • Quite affordable
  • Simple to set up and manage
  • Offers a reliable connection
  • Occupies less space
  • Less exposed to overheating


  • Limited to compatibility with ISPs

Arris Surfboard SB6183

Arris Surfboard SB6163 Cable modem: Best for internet speed plans of up to 400Mbps

This model fits in the list because of its reliable performance. One thing you will love it for is its design that ensures that it does not overheat. Its price is also friendly hence delivering an excellent service.

If your target is to have plans as much as 400 Mbps, this model is one that you should not miss. It works with the major ISPs hence an ideal choice. Although it is limited to some ISPs, you will love its reliability with connected routers.

This model does not have a built-in router. You will, therefore, need to have a separate one to get the best service. The fantastic thing is that you have a reliable connection because it supports high speeds.

You will further get a special love for it because of the 16 download streams and four upload streams. With the bonded channel of the DOCSIS 3.0 Technology, the model will offer a reliable performance. A gigabit port enhances the connection to routers and other devices.


  • Has a lovely vertical design
  • Offers simplicity of use
  • Reliable connection
  • Simple to set up and manage
  • Gigabit speeds


  • No Wi-Fi router

Choosing the best DOCSIS 3.0 modem and modem router combo

When at the stage of decision making, there are several things that you need to consider. The DOCSIS 3.0 modem and modem router combo will give you an excellent performance when the criteria below are followed for their choice.

DOCSIS 3.0 modem technology

The first thing you will need to look at is the presence of the DOCSIS 3.0 Technology. Choose a modem that has the technology. The DOCSIS 3.0 modems will be able to give you exceptional internet speeds for your home.

In case you want gigabit speeds, you may need to consider the best DOCSIS 3.1 modems for your home. These modems work with high-speed internet plans from your internet service provider.

Modem router

You may either need to have a simple modem or a modem router. This is the stage you need to ensure that you get one that you feel will serve you best. A modem router has its own advantages and disadvantages.

The main advantages of choosing a modem router are that it saves space in your home, it’s less costly to procure, and the setup process only will be for one device.

The main disadvantages of getting a modem router are that it may have constraints in performance and also when it develops a problem then the whole system is spoilt.


The cost is dependent on your budget. You should, therefore, get one model that meets your budget. To get the best quality, you will need to do a little research to choose one with the best quality.

The modems and modem routers last for very long. Therefore, it is great to consider the performances before thinking of the cost. You don’t want to buy a product that will not serve you for long.

Final verdict

DOCSIS 3.0 is a high performing internet technology. The main reason you will love it is that it offers a reliable connection and very high speeds. You will also have support for many devices, both wired and wireless.

Get the best DOCSIS 3.0 modem to enjoy fast internet in your home when connected to an equally fast router.