10 Best comcast xfinity approved modems of 2025

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1

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

High-Speed Connectivity
Delivers up to 2.5Gbps download and 1Gbps upload speeds for optimal internet performance.

Ideal for Multi-Device Use
Perfect for multi-family gaming, video conferencing, and large file uploads.

Praised for Stability
Customers appreciate its stable connection and reduced errors compared to previous models.
Key specs
- channel bonding:DOCSIS 3.1
- ethernet ports:Two Gigabit ports
- max speed:Up to 2.5Gbps
- dimensions:6.8 x 3.7 x 8.2 inches
- number of ports:N/A
9.9

Exceptional

Our Rating
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Value for Money

2

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
9.8

Exceptional

Our Rating
3

ARRIS
ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - (No Built-in Wifi)
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.
9.7

Exceptional

Our Rating

9.5
Simple to use

9.3
lasts a long time

8.9
Easy installation
4

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

25% Off
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
9.6

Exceptional

Our Rating
5

ARRIS
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)
Main highlights

Cost Savings Feature
Own your modem and save up to $168 annually on rental fees.

Ideal Use for High-Speed Plans
Perfect for multi-gigabit internet plans up to 2.5 Gbps.

Praised Setup Ease
Customers appreciate the straightforward setup process using the app.
Key specs
- channel bonding:DOCSIS 3.1
- ethernet ports:2 ports
- max speed:Up to 3.5 Gbps
- dimensions:10.55 x 6.75 x 2.46 inches
- number of ports:N/A
9.5

Excellent

Our Rating
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6

ARRIS
ARRIS (SB8200-RB) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - Renewed

16% Off
Main highlights

High-Speed Capability
DOCSIS 3.1 modem supports internet speeds up to 2 Gbps, ideal for high-bandwidth activities.

Provider Compatibility
Works with Xfinity, Spectrum, Cox, and other major U.S. providers for seamless integration.

Easy Setup Experience
Customers praise the relatively easy setup process using the SURFboard Central app.
Key specs
- channel bonding:32x8 DOCSIS 3.0
- ethernet ports:Two 1-Gigabit
- max speed:Up to 2 Gbps
- dimensions:1.75 x 5.13 x 5.25 inches
- number of ports:N/A
9.4

Excellent

Our Rating

8.7
Simple to use

8.4
Easy installation

8.0
Temperature control
7

Hitron
Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 10x Faster Than DOCSIS 3.0 | 2.5 Gbps Ethernet Cable Modem ONLY

30% Off
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
- channel bonding:N/A
- ethernet ports:N/A
- max speed:2.5 Gbps
- dimensions:N/A
- number of ports:1
9.3

Excellent

Our Rating
8

NETGEAR
NETGEAR Nighthawk Cable Modem CM1200 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet ports | DOCSIS 3.1, Black

24% 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
- channel bonding:32x8
- ethernet ports:Four 4 Gigabit
- max speed:Up to 2Gbps
- dimensions:6.1 x 3.4 x 10.3 inches
- number of ports:N/A
9.2

Excellent

Our Rating

8.4
Easy installation

8.0
WiFi signal

8.0
User interface
9

ARRIS
ARRIS (G34) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds

35% Off
Main highlights

High-Speed Connectivity
The ARRIS SURFboard G34 provides ultra-fast streaming and downloading with DOCSIS 3.1 technology and Wi-Fi 6, supporting speeds up to 1 Gbps.

Ideal for Large Homes
Perfect for homes needing extensive Wi-Fi coverage and high-speed internet, compatible with major U.S. cable providers.

Customer Praise for Speed Improvement
Customers consistently praise the significant improvement in internet speed and reliability after upgrading to the ARRIS SURFboard G34.
Key specs
- number of ports:Four 1-Gigabit
- modem type:DOCSIS 3.1
- data rate:3,000 Mbps
- max speed:3 Gbps
- security type:Better security
9.0

Excellent

Our Rating

8.9
User interface

8.7
lasts a long time

8.4
Easy installation
10

Commscope
ARRIS (SB6190-RB) - Cable Modem - DOCSIS 3.0 32x8 Gigabit Modem, For Comcast Xfinity, Cox, check with ISP for compatibility [Not for Spectrum] 1 Gbps Port, 800 Mbps Max Speed, 2 Year Warranty -Renewed

16% Off
Main highlights

High-Speed Connectivity
Supports 32 downstream x 8 upstream DOCSIS 3.0 bonded channels for fast internet speeds up to 800 Mbps.

Ideal for Cable Internet Users
Best for users needing a standalone modem for cable internet service without Wi-Fi.

Praised for Easy Setup
Customers appreciate the straightforward setup process using the SURFboard Central App.
8.9

Very Good

Our Rating

9.7
worth the money

9.5
for playing video games

8.7
Easy installation

10 Best comcast xfinity approved modems of 2025

1

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

How do we rank?

How do we rank?

Analyzing top stores

2

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

3

ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - (No Built-in Wifi)

9.5

9.3

8.9

4

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

5

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)

6

ARRIS (SB8200-RB) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - Renewed

8.7

8.4

8.0

7

Hitron CODA56 Multi-Gigabit DOCSIS 3.1 Modem | 2.5 Gbps Max Internet Speeds | Certified with Xfinity, Charter Spectrum, Cox | 10x Faster Than DOCSIS 3.0 | 2.5 Gbps Ethernet Cable Modem ONLY

8

NETGEAR Nighthawk Cable Modem CM1200 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet ports | DOCSIS 3.1, Black

8.4

8.0

8.0

9

ARRIS (G34) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds

8.9

8.7

8.4

10

ARRIS (SB6190-RB) - Cable Modem - DOCSIS 3.0 32x8 Gigabit Modem, For Comcast Xfinity, Cox, check with ISP for compatibility [Not for Spectrum] 1 Gbps Port, 800 Mbps Max Speed, 2 Year Warranty -Renewed

9.7

9.5

8.7

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