We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy

Best Xfinity Cable Modems

From leading brands and best sellers available on the web.
#1

Winner

ARRIS (S34) - Cable Modem - Fast DO

ARRIS

9%OFF

editor-choice-ribbon

ARRIS (S34) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Cable Modem, for Comcast Xfinity, Cox, Spectrum & More, 2.5 Gbps Max Internet Speeds, 2 Year Warranty - (No Built-in WiFi)

View on Amazon
#2
ARRIS (G20) - Cable Modem Router Co

ARRIS

editor-choice-ribbon

ARRIS (G20) - Cable Modem Router Combo - Fast DOCSIS 3.1 Multi-Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1.0 Gbps Max Speeds, Next-Generation Upload Optimized

View on Amazon
#3
ARRIS (G36-RB) - Cable Modem Router

ARRIS

ARRIS (G36-RB) - Cable Modem Router Combo - Fast DOCSIS 3.1 Multi-Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1.2 Gbps Max Speeds - Renewed

View on Amazon
#4
Motorola B12 - Advanced Compact Cab

Motorola

5%OFF

Motorola B12 - Advanced Compact Cable Modem | Pairs with Any WiFi Router | Supports Comcast Xfinity, Cox, Spectrum | 2500 Mbps Max | DOCSIS 3.1 | 2.5 Gbps Port | Nex Gen MB8611

View on Amazon
#5
NETGEAR Cable Modem WiFi Router Com

Netgear

NETGEAR Cable Modem WiFi Router Combo C6300 | Compatible with Providers Xfinity by Comcast, Spectrum, Cox | Plans Up to 400Mbps | AC1750 WiFi Speed | DOCSIS 3.0.

View on Amazon
#6
MOTOROLA 16x4 Cable Modem, Model MB

MOTOROLA

29%OFF

MOTOROLA 16x4 Cable Modem, Model MB7420, 686 Mbps DOCSIS 3.0, Certified by Comcast XFINITY, Charter Spectrum, Time Warner Cable, Cox, BrightHouse, and More

View on Amazon
How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

headphones-stars

Most Popular Categories Right Now

Buying Guide for the Best Xfinity Cable Modems

Choosing the right cable modem for your Xfinity service is crucial for ensuring you get the best internet performance and reliability. A good modem can enhance your internet speed, reduce latency, and provide a stable connection for all your online activities. When selecting a cable modem, it's important to consider several key specifications to ensure it meets your needs and is compatible with your Xfinity service. Here are the key specs to look at and how to navigate them.
DOCSIS StandardDOCSIS (Data Over Cable Service Interface Specification) is the technology that allows high-speed data transfer over cable TV systems. The most common standards are DOCSIS 3.0 and DOCSIS 3.1. DOCSIS 3.0 is suitable for most users and supports speeds up to 1 Gbps, which is sufficient for standard internet usage, streaming, and gaming. DOCSIS 3.1 is the latest standard and supports speeds up to 10 Gbps, making it ideal for heavy internet users, large households, or those who want to future-proof their setup. Choose DOCSIS 3.1 if you need the highest speeds and best performance, otherwise, DOCSIS 3.0 should suffice.
Speed Tier CompatibilityYour modem needs to support the speed tier of your Xfinity internet plan. Xfinity offers various speed tiers, and your modem should be capable of handling the maximum speed of your plan. For example, if you have a 400 Mbps plan, ensure your modem can support at least 400 Mbps. Modems are often labeled with their maximum download and upload speeds, so match these with your internet plan to ensure optimal performance.
Channel BondingChannel bonding refers to the number of downstream and upstream channels a modem can use simultaneously. More channels mean better performance and higher speeds. For example, a modem with 16x4 channel bonding has 16 downstream and 4 upstream channels. For most users, 16x4 or 24x8 channel bonding is sufficient. However, if you have a high-speed plan or multiple users, consider a modem with 32x8 or higher channel bonding to ensure smooth and fast internet access.
Built-in RouterSome cable modems come with a built-in router, providing both modem and Wi-Fi capabilities in one device. This can save space and reduce the number of devices you need. However, built-in routers may not offer the same performance or features as standalone routers. If you have a large home, multiple devices, or need advanced features like parental controls or guest networks, you might prefer a separate modem and router. For simpler setups or smaller homes, a modem-router combo can be convenient and cost-effective.
ISP CompatibilityNot all modems are compatible with all internet service providers (ISPs). Ensure the modem you choose is approved for use with Xfinity. Xfinity provides a list of compatible modems on their website. Using a compatible modem ensures you get the best performance and support from your ISP. Check the modem's packaging or product description for compatibility information before purchasing.
Ethernet PortsEthernet ports allow you to connect wired devices directly to your modem for a more stable and faster connection. Most modems come with at least one Ethernet port, but some have multiple ports. If you have several devices that require a wired connection, such as gaming consoles, smart TVs, or desktop computers, consider a modem with multiple Ethernet ports. This can help reduce network congestion and improve overall performance.
Future-ProofingTechnology is always advancing, and internet speeds are continually increasing. Choosing a modem that supports the latest standards and higher speeds can help future-proof your setup. This means you won't need to upgrade your modem as frequently, saving you money in the long run. Consider your current and future internet needs, and choose a modem that can handle potential upgrades in your internet plan or the number of connected devices in your home.