Best Cable&WI-FI modems for Comcast Xfinity[Officially Approved 2024]

Comcast Xfinity is one most established and renowned ISP available for users in the market right now. It provides quite a lot of options, and all of these are super-fast with very high download and upload speeds to fulfill all your internet needs conveniently. Connected through the right modem, the Xfinity will give you your dream experience of having the fastest Internet in the town. Whether you are setting it up at the home, office, or shared in any space, it will still render that top-notch speed to keep you online without any hurdles, what so ever.

Comcast also has a very convenient service, with a bare minimum downtime, so even if things do go wrong at some point or another, rest assured, it will be up in no time and brings you into the loop of one of the fast internet speeds that you can access, right away. So, selecting the best modem for Comcast Xfinity is crucial for the desired output.

Related: Best Modem for gaming 2024

Our Recommendations

Getting the right modem for your internet service connection is exceptionally crucial. It will bring all the difference, especially if you are planning to share your Internet or if there will be several users who will simultaneously access it through Wi-Fi, which is where you should start your planning from – getting the right modem. It could also help you get rid of Comcast’s monthly rental for their equipment, which is moderately expensive, to be honest.

We have prepared a guide with a list of the Xfinity-approved modems, thoroughly researched and reviewed. Keeping all things in mind, ranging from modems with vast and varied compatibility, we will tell you about the long Wi-Fi range and excellent value for the price with updated firmware and support for the latest Internet stands. We have brought you a list of the best that we could find as well. All the best Comcast compatible modem are listed below:



This modem is compatible with all major cable service providers and supports 680Mbps, 16x faster than 2.0 devices. It is a high-speed modem that will provide you with satisfying speed all over your home; whether it’s streaming, gaming, or anything else, you will have the rate to spare. With NETGEAR CM500, you do not have to worry about monthly rental fees, as they don’t charge any monthly payments on this modem. Purchasing this modem will enable you to stream in 4k due to its support download speed of up to 680Mbps and upload up to 132Mbps, which means you can also enjoy high-speed online gaming without interference.

CM500 also has a narrow profile, which means you can tuck it away behind other components and keeps your valuable shelf space open. Comcast Xfinity is ideal because you do not have to pay a monthly fee for your modem if you get yourself a CM500 modem.

CableLabs® DOCSIS® 3.0 certified this specific modem to work with U.S. cable Internet providers like XFINITY; this also means it supports gigabit speeds. Some modems do not support DOCSIS 3.0, which can be a hassle as they do not help gigabit speed, but with NETGEAR CM500, you do not have to worry about that stuff. It features a Gigabit Ethernet port, which is the fastest wired speed to connect your computer or router.

The CM500 is also backward compatible with DOCSIS 2.0, making it compatible with DOCSIS 2.0 networks. This product comes with a one-year NETGEAR hardware warranty, so you don’t have to worry about any hardware malfunction. The NETGEAR CM 500 is available in stocks for $69.99, and it allows you to save up to $168 per year.

  • Excellent Price
  • Sleek and Compact Design
  • Backed by One-Year Warranty
  • Supports IPV6 technology
  • Overheating issues reported by users


This modem made it into our list due to its particular feature; it’s a 3 in 1 product, a very appealing offer. It is a DOCSIS 3. bit Ethernet Router; this device provides you with three things in one. It is a good enough reason to buy this modem, but there is more to it. SURFboard SBG10 features 16 downstream & 4 upstream channels, best for cable internet service plans up to 400 Mbps.ARRIS made an app, especially for this modem and your convenience, so that you can set up and manage your network with the SURFboard Manager app.

As stated, this is a DOCSIS 3.0 modem that will support your gigabit connection without any problem. Getting this modem equipped in your home, office, or any workplace will ensure you get the highest bandwidth speed within its range. The 802.11ac Wi-Fi on this device provides you with Wi-Fi speeds up to 1600 Mbps.

Setting up this modem in your place will make sure you get download speeds up to 686 Mbps. SBG10 is equipped with 2.4/5 GHz dual-band concurrent, ensuring you suffer from minimum network interference while using your Internet. It is sure to reduce your cost as much as possible ARRIS made this modem with your requirements in mind. For that purpose, they made it energy efficient; the Energy Efficient Ethernet prolongs modem life and provides cost savings.

ARRIS SURFboard SBG10 comes with two 1-Gigabit Ethernet Ports for a fast, reliable wired connection that makes sure that all the devices connected to the Internet through ethernet get the fastest speed possible without interference. This 3 in 1 device features IPv6, which is the latest internet standard. Buying an ARRIS SURFboard SBG10 will save you from the monthly fee of your ISP’s modem. Three products in one device is an economical and space-saving choice.

  • Sleek and compact design
  • Wide range of compatibility
  • Excellent overclocking capabilities
  • Fewer than expected Ethernet Ports

Motorola MB8600-Best Cable Modem for Xfinity

Motorola MB8600

Model MB8600 supports ultra-fast DOCSIS 3.1 and also falls back to the quickest DOCSIS 3.0. Wirecutter recommends this as the best cable modem for Xfinity for people using Gigabit Internet plans. Buying this product will provide you with top Internet Speeds or all cable internet services.

This modem will save you from the monthly charges of your ISP’s modem; it also works with any modem, including Whole Home Wi-Fi or Mesh routers like eero, Google Wi-Fi, and Orbi. However, this modem does not work as a Wi-Fi router, and neither does it support a wired telephone.

MB8600 provides Downstream speeds up to 3.8 Gbps when supported by your cable service speed and a router that can bond Ethernet ports Up to 1 Gbps upstream speeds. This modem has a unique feature, and that’s its Active Queue Management; this feature significantly reduces Internet latency. QAM makes the web pages load faster and greatly enhances interactive applications like online gaming and video conferencing.

This device also includes Broadcom Full-Band Capture digital tuner, improving the speed and saving energy. Saving energy also results in more life for your modem. The modem is equipped with IPv6, which’s the next-generation Internet addressing support.

MB8600 has one opened and three masked 10/100/1000 Gigabit Ethernet LAN ports, which allows the connection of any SINGLE device with an Ethernet port, including a router, Windows/Mac computer, HDTV, game station. However, the multiple Ethernet ports do not connect to multiple devices.

The multiple Ethernet ports allow a router connection to bond more than one Ethernet port to achieve speeds over 1Gbps when supported by your cable service. Ruggedized lightning and power surge circuits protect your investment by ensuring the health of the modem. This modem is great for Netflix, YouTube, and other video streaming, high-speed gaming, Facebook, web browsing, emails, and more.

  • Wide and Varied compatibility range
  • Improves your Internet Latency
  • Vulnerable to Attacks



We have another 3 in 1 modem as our 4th suggestion; the SURFboard SBG7400AC2 is a DOCSIS 3.0 modem, Wi-Fi 5 AC2350 Access Point Dual-Band concurrent radios, and a 4-Port Gigabit Ethernet Router, all wrapped up in one device. This modem is sure to provide you with satisfying speeds that ensure you are never distracted while playing online games or streaming H.D. videos. This modem offers Wi-Fi speeds up to 2350 Mbps that means even wireless internet devices will get fast and reliable internet speed. This modem is also featured in your list because it supports up to 24 downloads and eight upload bonded channels.

SBG7400AC2 is Compatible with all speed tiers less than 1 Gb. This device comes with a two-year limited warranty, so you don’t worry about that part as it is covered for a long time. Buying this modem will decrease your expenses as you don’t have to pay your ISP’s monthly fees.

You can easily set up and manage your network with the SURFboard Manager app. This modem does not support the telephone. It also comes in a McAfee version, which makes it secure. It Protects all devices connected to your home network from malware and viruses.

McAfee model provides you with Per User parental control restricting accessibility individually. This version is also customizable, so you can easily manage settings by user profile.McAfee’s version of this device enables you to conveniently receive real-time alerts about your network’s security and access controls for user internet access on your home network or via the mobile app. . This modem has 4-gigabit Ethernet ports and 1 USB port. The McAfee version comes with a button that blocks all internet connectivity.

  • Supports the latest IPv4 and IPv6 internet standard
  • Features 24 download and eight upload channels
  • Backed by McAfee Security
  • Setting it up is a tricky job
  • Disappointing Signal range

NETGEAR Nighthawk AC1900 Wi-Fi Cable Modem Router Combo (C7000) for Xfinity

NETGEAR Nighthawk AC1900

This modem made it on our list because of its outstanding features; this modem supports high-speed WIFI Up to 1.9 Gbps combined with Wi-Fi speed for extreme gaming and streaming. It is a DOCSIS 3.0 modem with up to 24 times more fast cable Internet speeds than DOCSIS 2.0. This modem comes with 4 Gigabits Ethernet ports,1 USB 2.0 port. This specific modem also supports 24 downstream and eight upstream channels. It is equipped with a 1.6GHz combined processor, which boosts wireless, wired, and WAN-to-LAN connections and enhances their speed to get the maximum potential of your internet speed.

The AC1900 features GIGABIT WIFI, which is next-generation Wi-Fi and supports speed in gigabits even in wireless devices. This device is a Two-in-One Cable Modem and Wi-Fi Router combo; it works both as a modem and as a router; this saves you some money. If you get this modem, you also don’t have to pay your ISP’s monthly fee.

Cable Internet providers use data channels to deliver the Internet to your home. Like lanes on a highway, these channels get congested during peak hours, and your Internet access can slow down. However, having more channels on your modem router is like adding lanes to the highway. The more channels you have, the faster you go; thus, to counter the interception and get you the highest possible speed, this modem is equipped with 24 downstream and eight upstream channels.

The AC1900 modem comes with High-powered amplifiers & three dual-band internal antennas, ensuring you get signals all over your home or workplace. SIMULTANEOUS DUAL BAND feature of this modem reduces interference for better connections to more Wi-Fi devices. All these features make this modem very reliable. However, it has even more features like parental control and guest network access.

  • Long Range
  • Fastest peak throughput
  • Excellent USB network performance
  • Very expensive as compared to others
  • Out-dated firmware

Motorola MG7550

Motorola MG7550

The MG7550 modem is a modem with an AC1900 Gigabit router. It is a smart idea as a gigabit router and a modem combined to save a lot of space and prevent the wire jumbles, and the installation also becomes simple. This cable modem is suitable for use with the 250 Mbps and 300 Mbps services available from Comcast. This model is a 16×4 DOCSIS 3.0 cable modem, which supports gigabit speed and faster Internet than previous generations. This model supports 16 downstream channels, which deliver speed up to 686 Mbps and four upstream channels for rates up to 123 Mbps, so your Internet is sure to perform well even when it’s high traffic time. However, the actual downstream and upstream speeds depend on several factors, including your cable service’s rate.

The Motorola’s MG7550 modem is already fast and reliable, but it also supports Full-Band Capture digital tuner for even higher speeds and a quicker, more reliable Internet. The built-in router has three internal antennas that support three sending and three receiving channels.

For a longer and better range of the Wi-Fi signals, the router uses Any Beam implicit beamforming at 2.4 GHz and 5.0 GHz that focuses the signal on wireless clients to allow better performance and range. This router can work on Wi-Fi DFS frequencies to decrease your internet usage interference, unlike most routers, so it is less vulnerable to Wi-Fi interference from neighbors.

It is a vertical modem that takes less space, and the regularized lightning and power surge circuits keep the modem in good condition. This device comes with a two-year warranty, so the customers do not worry about hardware malfunction. The privacy and your devices are protected by the Advanced firewall, which the manufacturers added for extra security.

  • Excellent Built-in security features
  • Long Wi-Fi Range
  • Designed considerably to avoid overheating issues
  • Crappy firmware

Arris SURFboard (SBG6950AC2)

Arris SURFboard BG6950AC2

The ARRIS SURFboard SBG6950AC2 is a DOCSIS 3.0 modem, wave 2 AC1900 dual-concurrent Wi-Fi Access Point, and 4-Port Gigabit Ethernet Router, all of that, comes with one device. It has 16 downstream and four upstream channels and is best for internet speed plans up to 300 Mbps. Buy this modem and stop spending monthly rental fees for your modem. This three-in-one device provides you with rates up to 686 Mbps and A.C. Wave 2 Wi-Fi, which supports speeds up to 1900 Mbps; the SBG6950AC2 offers you more speed, more network capability, faster streaming and downloading throughout your home without any hindrance.

The SURFboard SBG6950AC2 modem is compatible with infinity and other major us internet service provider companies. If you are looking for a reliable money-saving modem, this might be your choice; you don’t have to pay a rental fee if you buy this modem, and then it also comes with a two-year warranty.

The Dual-concurrent AC1900 Wi-Fi feature of this modem provides you with a reliable Wi-Fi range and speed on your Wi-Fi devices all over your home. It’s a DOCSIS 3.0 modem, which means it supports gigabit speed without any interference. The four 1-Gigabit Ethernet ports are also available for Ethernet connectivity on all your Ethernet devices, or they can be used to connect one more router to your modem. So this modem got your Wi-Fi and Ethernet connectivity requirements covered.

The ARRIs mobile app makes setting up and managing your device even more comfortable, and your settings are frequently available. The app makes this device even easier to set up and use.

The Wi-Fi pairing button on the device makes connecting your Wi-Fi devices to the modem way more straightforward, so you get internet access by one press on your Wi-Fi devices. This modem will make sure you enjoy high-quality video streams and online gaming simultaneously.

  • Easy to set up
  • Has Built-in security features
  • Overheating issues reported by users

NETGEAR Nighthawk Cable Modem Wi-Fi Router Combo C7000


This modem is compatible with all major internet service providers in the U.S.; It is built to provide your devices with fast internet speed and minimize any internet interference. This product is best for cable provider plans up to 400 Mbps speed.

Engineered with a 24×8 channel, which enables you to enjoy the best available internet speed even with high traffic, bonding and DOCSIS 3.0 makes it able to provide you with Gigabit speed internet. This modem is best for providing you with your Internet’s full potential if we consider these features.

The Nighthawk C7000 modem also comes with built-in Wi-Fi, so you get up to 1800 square feet of wireless coverage; you can even connect 30 devices with AC1900 speed (up to 1900 Mbps). The modem’s versatility is like non-others; it comes with four 1-Gigabit Ethernet connectors that can easily connect your ethernet devices to the modem through the Ethernet cable.

Ethernet ports are ensured to get the highest possible speed due to these reliable modem ports. The Ethernet ports and 2 USB ports give you fast wired connections to your computer, printer, consoles, and other devices.

The channels and the high-quality Wi-Fi of this modem make sure you never get interrupted while watching high-quality streams in 2k or 4k and playing online games simultaneously. If you get this modem, you will save yourself some money as you won’t have to pay your internet providers’ rental fees.

Parental control allows you to limit internet usage and restrict websites or the Internet on specific devices; this device helps you control your children’s activity with full power. Vertical mount for this modem will take less space on your shelf, and the modem also supports Wi-Fi, so you do not need a Wi-Fi router, which also takes space.

  • Sleek, lightweight, and modern design.
  • Good speed with a decent Wi-Fi range.
  • Disappointing range of features for such a premium price

ARRIS Surfboard SBV3202

ARRIS Surfboard SBV3202

A perfect fit for the home or small business, The SBV3202 delivers two lines of Voice over I.P. and high-speed internet access with multiple battery pack options, which are sold separately to support telephony service during power outages.

It has 32 downstream and eight upstream channels and is best for internet speed plans up to 400 Mbps, suitable for Xfinity users who need the speed and performance to keep their home network performing at optimal levels. This device satisfies all your needs. This modem can connect your landline and even provide Wi-Fi all over your home at long ranges. This modem is on your list because it is like none other in the reliability department; you can connect your landline and use it as a modem and a Wi-Fi router.

This product is a cost-saving device as you don’t have to pay the rental fee to your ISP, and you get three things all packed up in one device. It is a DOCSIS 3.0 cable Modem with 32 downstream x 8 upstream channels, which provides you with satisfying internet speed all over your home or workplace, even in high traffic hours. More channels are there to make sure you get reliable Internet at any time without any interference.

You can watch high-quality streams and use streaming apps or websites on your Wi-Fi or Ethernet devices, as this modem will keep your streaming and online gaming simultaneously optimized. One Ethernet Gigabit port can connect your Ethernet devices directly to the modem, or you can set up another Wi-Fi router through the Ethernet port.

For your landline phone, this modem provides you with two telephony ports so you can connect and use two phones easily. Surfboard SBV3202 supports internet speed up to 600 Mbps and is better than most modems to watch online streams.

  • Reasonable Price
  • DOCSIS 3.0 with 32 downstream and eight upstream channels
  • Tricky to set-up

The primary thing to consider is the fact that these modems will save your unending monthly rental expenses and provide you with a whole new range of features along with complete control. How you should pick the best one from among these mostly depends on your budget and what speed your internet service provider lets you achieve typically.

It is also vital to choose a modem with the latest firmware protected by built-in security features, like McAfee, to avoid any potential vulnerability.

The Motorola MB8600clears its way to be the most budget-efficient choice for long-term use and reliability.

Next up, look for the newest internet standard and latest Docsis support, and you are good to go. Netgear is one of the most recommended brands for Modems, followed closely by Arras, so consider your requirements carefully and get yourself the speed you deserve.

The NETGEAR Nighthawk Cable Modem Wi-Fi Router Combo C7000took a sweet spot as your top editor’s choice for its ultimate bandwidth and more connectivity options.

Originally posted 2021-05-15 18:00:25.