10 Best cox 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
9.8

Exceptional

Our Rating
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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

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
9.7

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.
9.6

Exceptional

Our Rating

9.5
Simple to use

9.3
lasts a long time

8.9
Easy installation
4

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
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
- channel bonding:N/A
- ethernet ports:N/A
- max speed:2.5 Gbps
- dimensions:N/A
- number of ports:1
9.4

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
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
9.3

Excellent

Our Rating

8.7
Simple to use

8.4
Easy installation

8.0
Temperature control
7

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

25% 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
8

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
9

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

37% Off
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.
8.6

Very Good

Our Rating

9.3
Easy installation

9.1
worth the money

8.0
Stability
10

ARRIS
ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Cable Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 2 Year Warranty - (No Built-in Wifi)
Main highlights

High Speed Performance
The ARRIS Surfboard S33 offers DOCSIS 3.1 technology, providing up to 2.5 Gbps internet speeds and reducing lag for gaming.

Ideal for High-Speed Plans
Best for users with internet plans up to 2.5 Gbps, compatible with major U.S. providers like Comcast, Cox, and Spectrum.

Praised for Consistent Speed
Customers love its reliable high-speed performance, consistently delivering near-gigabit speeds without service drops.
8.4

Good

Our Rating

8.9
Sheerness

8.4
Easy installation

8.0
WiFi signal

10 Best cox 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 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 (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

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)

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

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

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

8

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

9

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

10

ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Cable Modem For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 2 Year Warranty - (No Built-in Wifi)

8.9

8.4

8.0

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