10 Best comcast xfinity approved modems of 2026

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NETGEAR

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM3000-1AZNAS) – Approved for Today’s Fastest Speeds - Works With all Cable Providers, Incl. Xfinity, Spectrum, Cox - Cable Plans up to 2.5Gbps
9.9

Exceptional

Our Rating
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Real users impact

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Based on millions of stores and reviews

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Value for Money

2

NETGEAR
NETGEAR Nighthawk Modem Router Combo (CAX30) DOCSIS 3.1 Cable Modem and WiFi 6 Router - AX2700 2.7 Gbps - Compatible with Xfinity, Spectrum, Cox, and More - Gigabit Wireless Internet
Main highlights

Dual-Band WiFi 6 Performance
Coverage up to 2,500 sq. ft. with 2.7Gbps speed.

Ideal for Cable Providers
Compatible with Xfinity, Spectrum, Cox for plans up to 2Gbps.

Praised for Easy Setup
Quick setup using the Nighthawk app, praised by users.
Key specs
- number of ports:4 Ethernet, 1 USB
- modem type:DOCSIS 3.1
- data rate:32 x 8 channel bonding
- max speed:2.7Gbps
- security type:WPA/WPA2/WPA3
9.8

Exceptional

Our Rating
3

ARRIS
ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2 -1Gbps Ethernet Ports | Works with Xfinity, Cox, Spectrum | For Cable Internet Plans up to 2Gbps | Modem Only, Router Required
Main highlights

Superior Connectivity and Speed
The ARRIS SURFboard SB8200 offers 10x faster speeds with DOCSIS 3.1 technology, ideal for streaming and gaming.

Ideal for High-Speed Plans
Perfect for internet plans up to 1 Gbps, ensuring optimal performance for heavy internet users.

Reliability and Performance
Customers praise its reliability and substantial speed improvements over older models.
9.5

Excellent

Our Rating

9.5
Simple to use

9.3
lasts a long time

8.9
Easy installation
4

Hitron

Hitron CODA56 Cable Internet Modem ONLY - DOCSIS 3.1 | 2.5 Gbps | NO WiFi - Requires Router | Xfinity/Spectrum/Cox Compatible | NOT for Fiber/DSL
9.3

Excellent

Our Rating
5

Hitron
Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 2.5 Gbps Ethernet Cable Modem ONLY | Requires Separate WiFi Router
Main highlights

High-Speed Internet Support
Unlocks internet plans up to 2.5 Gbps, 10x faster than DOCSIS 3.0.

Ideal for Cable Users
Perfect for Comcast Xfinity, Charter Spectrum, and Cox Gigablast users.

Praised for Easy Setup
Effortless installation with ISP activation, praised by customers.
Key specs
- number of ports:1
- modem type:DOCSIS 3.1
- data rate:2.5 Gbps
- max speed:2.5 Gbps
- security type:N/A
9.2

Excellent

Our Rating
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6

Hitron
Hitron CODA DOCSIS 3.1 Cable Modem ONLY | Up to 1 Gbps Max Internet Speeds | Certified with Comcast Xfinity, Charter Spectrum, Cox & More | Requires Separate WiFi Router
Main highlights

High Speed Connectivity
DOCSIS 3.1 modem offers 10x faster speeds than DOCSIS 3.0, supporting internet plans up to 1 Gbps.

Versatile Compatibility
Works with any WiFi router or mesh system, ideal for Comcast Xfinity and other major cable providers.

Reliable Performance
Praised for its stability and self-healing capabilities, ensuring smooth connectivity even with ISP fluctuations.
8.9

Very Good

Our Rating

9.9
Easy installation

8.7
worth the money

8.2
Long life
7

NETGEAR
NETGEAR Nighthawk Cable Modem CM1200 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Plans Up to 2 Gigabits | 4 x 1G Ethernet Ports | DOCSIS 3.1, Black

47% Off
Main highlights

High Speed Compatibility
Compatible with cable plans up to 2Gbps, supports DOCSIS 3.1 for future-proofing.

Ideal for Multi-Device Homes
Perfect for homes with multiple devices needing fast, stable connections.

Praised for Reliability
Customers appreciate its stable performance and easy setup process.
Key specs
- number of ports:N/A
- modem type:N/A
- data rate:N/A
- max speed:Up to 2Gbps
- power source:Power adapter
8.8

Very Good

Our Rating

8.4
Easy installation

8.0
WiFi signal

8.0
User interface
8

Motorola
Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power Boost | AC3200 Wi-Fi Speed | Approved for Comcast Xfinity, Cox, and Charter Spectrum
Main highlights

Key Features
Saves up to $168/year, supports DOCSIS 3.1, built-in AC3200 WiFi router with advanced tech for ultra fast, reliable WiFi.

Ideal Use Cases
Perfect for high-speed internet users, large homes needing wide coverage, and tech-savvy households looking for network management via a smart app.

Customer Praise
Most reviews highlight its reliability, easy setup, and significant improvement in WiFi speed and coverage as top benefits.
8.7

Very Good

Our Rating

8.9
Easy installation

8.2
worth the money

8.2
materials Quality
9

ARRIS
Arris (G18) - Cable Modem Router Combo - Fast DOCSIS 3.1 Multi-Gigabit WiFi 6 (AX1800), Approved for Comcast Xfinity, Cox, Spectrum & More

11% Off
Main highlights

Fast and Reliable Connection
Enjoy high-speed streaming, gaming, and browsing with trusted DOCSIS 3.1 technology.

Ideal for Home Networks
Perfect for homes using major ISPs like Xfinity, Spectrum, and Cox.

Praised for Cost Savings
Customers love saving up to $168/year by owning their modem.
8.6

Very Good

Our Rating
10

Motorola
Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | Approved by Comcast Xfinity, Cox, and Spectrum | for Cable Plans Up to 900 Mbps | DOCSIS 3.0
Main highlights

Fast Reliable Internet
Model MB7621 supports cable Internet speeds up to 650 Mbps with a Full-Band Capture Digital Tuner for enhanced reliability.

Versatile Connectivity
Ideal for connecting to WiFi routers, game stations, and streaming devices, compatible with major cable providers like Comcast Xfinity and Spectrum.

Easy Setup
Customers praise the modem's straightforward installation process, typically taking only 10-15 minutes to complete.
8.3

Good

Our Rating

9.3
Easy installation

9.1
worth the money

8.0
Stability

10 Best comcast xfinity approved modems of 2026

1

NETGEAR Nighthawk DOCSIS 3.1 Mid/high-Split Cable Modem (CM3000-1AZNAS) – Approved for Today’s Fastest Speeds - Works With all Cable Providers, Incl. Xfinity, Spectrum, Cox - Cable Plans up to 2.5Gbps

How do we rank?

How do we rank?

Analyzing top stores

2

NETGEAR Nighthawk Modem Router Combo (CAX30) DOCSIS 3.1 Cable Modem and WiFi 6 Router - AX2700 2.7 Gbps - Compatible with Xfinity, Spectrum, Cox, and More - Gigabit Wireless Internet

3

ARRIS SURFboard SB8200 DOCSIS 3.1 Multi‑Gig Cable Modem | 2 -1Gbps Ethernet Ports | Works with Xfinity, Cox, Spectrum | For Cable Internet Plans up to 2Gbps | Modem Only, Router Required

9.5

9.3

8.9

4

Hitron CODA56 Cable Internet Modem ONLY - DOCSIS 3.1 | 2.5 Gbps | NO WiFi - Requires Router | Xfinity/Spectrum/Cox Compatible | NOT for Fiber/DSL

5

Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 2.5 Gbps Ethernet Cable Modem ONLY | Requires Separate WiFi Router

6

Hitron CODA DOCSIS 3.1 Cable Modem ONLY | Up to 1 Gbps Max Internet Speeds | Certified with Comcast Xfinity, Charter Spectrum, Cox & More | Requires Separate WiFi Router

9.9

8.7

8.2

7

NETGEAR Nighthawk Cable Modem CM1200 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Plans Up to 2 Gigabits | 4 x 1G Ethernet Ports | DOCSIS 3.1, Black

8.4

8.0

8.0

8

Motorola MG8702 | DOCSIS 3.1 Cable Modem + Wi-Fi Router (High Speed Combo) with Intelligent Power Boost | AC3200 Wi-Fi Speed | Approved for Comcast Xfinity, Cox, and Charter Spectrum

8.9

8.2

8.2

9

Arris (G18) - Cable Modem Router Combo - Fast DOCSIS 3.1 Multi-Gigabit WiFi 6 (AX1800), Approved for Comcast Xfinity, Cox, Spectrum & More

10

Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | Approved by Comcast Xfinity, Cox, and Spectrum | for Cable Plans Up to 900 Mbps | DOCSIS 3.0

9.3

9.1

8.0

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