Best Modem For Spectrum – Top 5 Picks

A modem is a device that connects your computer to the internet. It converts data from your home or office network into a form that can be sent over the internet, and it converts data received from the internet back into its original form. Having a poor quality modem can ruin your internet experience. Getting a best modem for spectrum internet can improve your overall online surfing experience, can provide stable connection speed and also comes with additional useful features.

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Best Choice
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem |...
Budget Friendly
ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem,...
Best Performance
NETGEAR Cable Modem CM1000 - Compatible with All...
Best Value For Money
NETGEAR Nighthawk Cable Modem with Built-in WiFi 6...
Name
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem |...
ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem,...
NETGEAR Cable Modem CM1000 - Compatible with All...
NETGEAR Nighthawk Cable Modem with Built-in WiFi 6...
Channel Bonding
32 x 8
16 x 8
32 x 8
24 x 8
Modem Technology
DOCSIS 3.1
DOCSIS 3.0
DOCSIS 3.1
DOCSIS 3.0
Modem Features
2.5 Gbps Port, Multi Gigabit Ethernet Speed, Fast Streaming, Up to 800Mbps Modem Speed
IPV4 and IPV6 Support, Up to 680 Mbps Speed, High Affordability
Up To 6Gbps Speed, Gigabit Ethernet Port, USB 3.0 Port, 3000sqft Area Coverage
Gigabit Ethernet Port, Quick and Easy Setup, Upto 650Mbps speed
Best Choice
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Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem |...
Name
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem |...
Channel Bonding
32 x 8
Modem Technology
DOCSIS 3.1
Modem Features
2.5 Gbps Port, Multi Gigabit Ethernet Speed, Fast Streaming, Up to 800Mbps Modem Speed
Budget Friendly
Image
ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem,...
Name
ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem,...
Channel Bonding
16 x 8
Modem Technology
DOCSIS 3.0
Modem Features
IPV4 and IPV6 Support, Up to 680 Mbps Speed, High Affordability
Best Performance
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NETGEAR Cable Modem CM1000 - Compatible with All...
Name
NETGEAR Cable Modem CM1000 - Compatible with All...
Channel Bonding
32 x 8
Modem Technology
DOCSIS 3.1
Modem Features
Up To 6Gbps Speed, Gigabit Ethernet Port, USB 3.0 Port, 3000sqft Area Coverage
Best Value For Money
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NETGEAR Nighthawk Cable Modem with Built-in WiFi 6...
Name
NETGEAR Nighthawk Cable Modem with Built-in WiFi 6...
Channel Bonding
24 x 8
Modem Technology
DOCSIS 3.0
Modem Features
Gigabit Ethernet Port, Quick and Easy Setup, Upto 650Mbps speed

Last update on 2022-05-19 / Amazon Affiliate links / Images from Amazon Product Advertising API / As an Amazon Affiliate, i earn from qualifying Purchase

If you look in the market there are plenty of modems out there, each having different features, performance and build quality. To help you choose the right product, we have done some testing and made a list of spectrum approved modems from which you can choose for greater networking experience. So, without wasting anymore time, let’s get started.


1. Motorola MB8611 Modem For Spectrum Gigabit – Best Choice

wifi extender for cox internet

  • Up to 2.5Gbps Speed
  • DOCSIS 3.1 Modem
  • Gigabit Ethernet Ports
Pros
  • Amazing Performance
  • Easy 5-Min Setup
  • Muti Gigabit Ethernet Speed
Cons
  • None

When it comes to sheer performance, the Motorola MB8611 is the best cable modem for spectrum and ideal choice if you have internet plan of up to 1Gbps. on the market today. Working with internet subscriptions with speeds of up to 2500 Mbps. These are speeds that are so fast that Spectrum has not yet made them available to consumers. It’s sufficient for watching more than a dozen 4K movies at the same time.

Read Also: Best Modem Router Combo For Spectrum

Because this spectrum approved modem is DOCSIS 3.1 compliant and has a 2.5G Ethernet connector, such speeds are achievable. Instead of the standard 1G port, this one is 2G. One way to think of the MB8611 is as a more extreme version of the SB8200, with it being quicker, newer, and even more future-proof than its predecessor. This, on the other hand, makes it even more overdone. Because, as you may be aware, a modem can only supply you with the internet speed that is available with your internet plan.

Installing and configuring the MB8611 is fairly similar to the process of doing so with its older model. There is no need for technical knowledge. The modem may be configured in three simple steps: plugging in the coaxial cable into the WAN port, turning on the modem, and connecting it to a computer. As a result, the Motorola MB8611 is one of our top recommendations for Spectrum consumers who want the best of the best.


2. Arris SurfBoard SB6183 Modem For Spectrum – Budget Friendly

wireless range extender for cox isp

  • Up to 650Mbps Speed
  • DOCSIS 3.0 Modem
  • Good Compatibility
Pros
  • Quick and Easy Setup
  • Good Performance
  • Highly Affordable
Cons
  • Not Suitable for 1Gbps Plan

This product might not seem that powerful, but it gets the work done. Arris SB6183 is a budget friendly docsis 3.0 modem compatible with charter spectrum internet plan of up to 400Mbps. In addition, the modem has the potential of connecting up to 16 downstream channels and 4 upstream channels at the same time. This enables the customer to get the most out of their high-speed internet experience without having to pay a lot of cash. The greater the number of channels available to a modem, the better and more efficient its network traffic will be.

Read Also: Best Wifi Router For Spectrum

It has data rates of up to 686 Mbps downloading speeds, which makes gaming and online shopping, as well as performing other everyday tasks, a breeze with this modem. You may also video contact your family or friends using high-speed connections and video in high definition (HD). This modem also supports the most up-to-date internet protocols and standards, allowing it to operate at a quicker and more efficient rate than ever before. One of the most significant advantages of this modem is the chipset that is integrated within it.

In terms of speed and internet constancy, it makes use of the Broadcom BCM33843D chipset, which is one of the most dependable chipsets available on the market. The spectrum approved modem may be set up in three easy stages, and each step is straightforward. All that is required is that you attach the power, coaxial, and Ethernet cables to the appropriate ports. After that, you may connect to the internet either by calling your ISP or by connecting through the Arris portal. Finally, connect a Wi-Fi router to your computer so that you may configure the internet on your devices.


3. Netgear CM1000 Cable Modem For Charter Spectrum – Best Overall

tplink wifi extender for cox communications

  • Up to 1Gbps Speed
  • DOCSIS 3.1 Modem
  • Easy To Setup
Pros
  • Easy To Setup
  • Gigabit Performance
  • Great Compatibility
Cons
  • Subpar Quality Control

The Netgear CM1000 is another DOCSIS 3.1 modem that is compatible with every Charter Spectrum internet plan, even the basic 200Mbps, 300Mbps and 400Mbps internet plan. It has a quite simple design. Although somewhat taller than some of the other alternatives, this one is also little sleeker. The rear of the device contains three inputs: a 1-Gigabit Ethernet port, a Coax port, and a power input.

Furthermore, it is equipped with an ON/OFF switch as well as a reset button. In addition, the CM1000 includes five LEDs on the front. The first is the on/off light, the second and third are the down- and up-stream channels, and the fourth is the power switch. The fourth light indicates whether or not the modem is connected, and the last light indicates whether or not the Ethernet port is active.

Read Also: Best Wifi Extender For Spectrum

The Netgear CM1000 is equipped with a Broadcom BCM3390 chipset, 128 MB of flash memory, and 256 MB of RAM, all of which are located inside the casing. Arris and Netgear both used large lettering to advertise speeds of up to 5Gbps, but it has explained in smaller characters towards the bottom of its page that, in reality, you would not be able to receive more than 1Gbps out of the port.

The hardware installation and setup process are pretty simple. it consists of connecting a coaxial cable to the modem (from a wall outlet or line splitter), connecting a power adapter to a wall outlet and to a port on the modem, and connecting a computer to the CM1000 via an Ethernet cable to complete the installation (required for the installation process, afterwards, you can use a router to spread the Internet wirelessly or via wires). Activation will begin when the modem is brought online. Please be patient during this procedure. This spectrum approved modem is pretty great pick if you have internet plan of up to 600Mbps to 1Gbps.


4. Netgear CAX80 Combo Cable Modem For Spectrum – Best Performance

linksys wireless range extender for cox

  • Wifi 6 Technology
  • DOCSIS 3.1 Modem
  • Gigabit Ethernet Ports
Pros
  • Built For Speed
  • Next Gen Wifi 6 Technology
  • Gigabit Ethernet Ports
Cons
  • Pricey

The Nighthawk CAX80 boasts a futuristic design that is both forward-thinking and cutting-edge. Because it’s off-center, it’s fashioned like an arrow with a larger slope at the top and a shorter slope at the bottom. For the most part, the item is manufactured from black ABS plastic with a satin finish on the outside and inside. Despite the fact that it is visually appealing, this surface is still smooth enough to be easily cleaned when necessary.

The DOCSIS 3.1 modem protocol is supported by the CAX80. This is the most up-to-date and best connection protocol available for cable internet. Overall, it is capable of download rates of up to 10Gbps and upload speeds of up to 1Gbps, respectively. This cable modem can easily support charter spectrum 1Gbps internet plan and also backward compatible with 300Mbps, 400Mbps and 600Mbps spectrum plans.

Read Also: Differences Between Motorola MB8600 and Arris Surfboard S8200

This is even quicker than the router’s own processing speed, thus lightning-fast connections are a foregone conclusion. No matter what you’re attempting to do, you’ll have more than enough bandwidth to complete the task at hand.

The CAX80 is compatible with WiFi 6, which is the most recent version of the WiFi protocol. In fact, it’s so new that smart home gadgets are just now beginning to support it as a result. Having said that, the CAX80 continues to support earlier WiFi protocols, allowing for the continued use of outdated devices. Essentially, you’re looking at a router that is both future-proof and capable of supporting outdated devices.

At least in theory, configuring the Netgear Nighthawk CAX80 is straightforward. If it’s only a router, there’s no need to worry about complicated configuration. If, on the other hand, you’re connecting it as a modem/router device, the performance will be determined by the service provider you choose. It is theoretically possible for the CAX80 to be certified by all major service providers.

Some service providers, such as Spectrum, will require you to phone in to get the modem enabled, so keep this in mind before ordering. It should simply take a few minutes on the phone with customer support to resolve this. Once they have your MAC address and a few other pieces of information, you will be ready to travel. If you are looking for super-fast approved combo modem for spectrum ISP than this might be a good pick.


5. Motorola MB7621 Modem For Charter Spectrum – Best Value For Money

tplink deco mesh wifi extender system for cox

  • Up To 900Mbps Speed
  • DOCSIS 3.1 Modem
  • Gigabit Ethernet Port
Pros
  • Good Performance
  • High Compatibility
  • Up To 2 Years Warranty
Cons
  • None

It is another one of the best cable modems approved for charter spectrum internet. The Motorola MB7621 is a DOCSIS 3.0 cable modem equipped with 24×8 channel bonding. This indicates that this modem is capable of supporting speed tiers of up to 600 Mbps. The MB7621’s appearance is functional and practical, despite the fact that it is not the most visually appealing gadget.

It will not appear out of place in any type of networking configuration. The sides and top of the gadget are adequately ventilated, which helps to keep the device from overheating. It’s also protected from lightning and power surges, among other things. Though not very small, it shouldn’t take up a lot of shelf space if stored in the proper location. Because the modem requires enough ventilation in order to function properly, it should not be placed on its side, as this may cause it to overheat.

We connected the MB7621 cable modem to our network using the Charter Spectrum 400 Mbps speed plan and ran four bandwidth-intensive apps at the same time to evaluate how well the modem would perform under pressure. When it came to streaming Netflix in 4K quality and downloading three huge game files on three different systems, the Motorola modem performed admirably (Xbox Series, PS5 and a gaming PC). Despite the fact that every modem we tested passed our tests, the Motorola’s 24 x 8 bonded channels make it an especially desirable choice if you subscribe to an internet service that advertises speeds ranging from 300 Mbps to as high as 600 Mbps.

Modems rarely function at their maximum capacity, despite the fact that their theoretical maximum speeds surpass this. If your internet connection is slower, the MB7621 still performs admirably and provides you with the flexibility to upgrade in the future without having to replace your modem. Data over cable service interface specification 3.0 criteria are met, and it is backwards compatible with DOCSIS 2.0 and 1.1 services, as well as previous versions of these standards. It connects quickly and simply to any router, allowing you to share high-speed Internet access across all of your WiFi or Ethernet-capable devices. Instead, an Ethernet port may be used to establish a high-speed connection with a computer, high-definition television, gaming station, or other Ethernet devices.


Spectrum Approved modem Buying Guide

Look out for these things before buying a modem for charter spectrum.

Your Internet Plan

The amount of speed and bandwidth that you receive is determined on the internet bundle that you choose. If your internet plan only provides 100 Mbps internet speeds, purchasing a modem that provides up to 1000 Mbps internet speeds will not result in any better internet speeds. You are restricted by the download and upload speeds that you have contracted with spectrum. You can also save some money.

DOCSIS

DOCSIS is the telecommunications protocol that allows you to connect to the internet through cable. With Spectrum, you have two options when it comes to purchasing a cable modem. DOCSIS 3.0 or DOCSIS 3.1 are the options. The primary difference between the two is that DOCSIS 3.1 is newer and quicker, whilst DOCSIS 3.0 is less expensive.

Personally, I recommend that you get a DOCSIS 3.1 modem for your Spectrum connection. Because it will help to future-proof your modem in the event that you change to a faster internet plan or that Spectrum improves all of their networks at the same time.

Combo Modem Or Just Modem Unit

In order to purchase a modem, you must first decide whether you want a modem/router combo or two distinct devices. The difference is that a modem/router combination is a device that has both a modem and a router in one package. While a standalone modem, which connects to a router through an ethernet connection, is distinguished from a router. Both approaches have advantages and disadvantages, however as a Network Administrator, I advocate using two distinct devices instead of one large one.

This is due to the fact that distinct devices allow for the replacement of a single device if it malfunctions or requires an upgrade. Increased performance and customization are also possible thanks to this technology. This is not to imply that modem/router combinations are inherently inferior to other types of equipment. They do, however, entail a lower initial investment and are frequently simpler to get up. Spectrum has a large selection of both alternatives on their permitted modems list, so the decision is ultimately yours.

Ethernet Port

When using DOCSIS 3.1 modems, it’s worth noting that the ethernet ports are the ones that most typically limit the speed of the modem. This is owing to the fact that a normal ethernet port can only sustain around 1 Gbps (940 Mbps, to be exact). As a result, it is frequently worthwhile to investigate the ports on a cable modem. This is especially true if you purchase a DOCSIS 3.1 modem.

Because many modems feature either ethernet aggregation or a 2.5G ethernet connector to help them overcome this limitation. The 2.5G ethernet port is exactly what it sounds like: a high-speed ethernet connector with a transfer rate of 2500 Mbps rather than 940 Mbps. Ethernet aggregation, on the other hand, is when you can combine up to one gigabit ethernet connection into a single data stream that can handle speeds of up to 2000 megabits per second.



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Final Words

A large number of acceptable modems are available from Spectrum, and after much testing and analysis, I’ve determined that the Motorola MB8611 is the best option for this provider. Because it offers a cost-effective, fast, and future-proof internet connection at a competitive speed.


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John Stewart

Hi There. I am the creator of this website. I have done Bachelor Of Science in Information and Technology from Drexel University. By Profession, I am working for a reputable company as a Network Support and Cyber Security Engineer.
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