10 Best Modems Compatible With Cox of 2025

Tested and Reviewed: Top 10 Modems Compatible With Cox deals with expert ratings from 8.1 to a perfect 10

July 2025 Edition

Editor's Choice

9.7

Save 10%

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

10% OffFree Shipping

Editor's bottom line:

“This modems compatible with cox is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Compatible with major cable internet providers including Xfinity, Spectrum, Cox and more. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service. Best for cable provider plans up to 2Gbps
Coverage up to 2,000 sq. ft. and 25 concurrent devices with dual-band WiFi 6 (AX2700) speed (up to 2.7Gbps)
4 X 1 Gig Ethernet ports (supports port aggregation) and 1 USB 3.0 port for computers, game consoles, streaming players, storage drive, and other wired devices
Replaces your cable modem and WiFi router. Save up to $168/yr in equipment rental fees
DOCSIS 3.1 and 32x8 channel bonding
NETGEAR Armor software provides an automatic shield of security for your WiFi and connected devices for real-time protection against hackers and added privacy with VPN. 30-day trial included
NETGEAR routers have security features enabled out of the box with automatic firmware updates, and industry-leading safety features to help protect you and your family
Easily set up and manage your WiFi with the Nighthawk app

Show Price

Picked by 187 people today

9.5

Save 18%

NETGEAR

NETGEAR Cable Modem CM500 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400Mbps | DOCSIS 3.0

18% OffFree Shipping

Main Highlights

Save monthly rental fees: Model CM500 replaces your cable modem, saving you up to $168/yr in equipment rental fees.
Speeds by carrier: Spectrum (up to 400Mbps), Xfinity (up to 200Mbps), Cox (up to 150Mbps).
Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
Modem technology: Engineered with 16x4 channel bonding and DOCSIS 3.0.

Show Price

9.5

Save 10%

NETGEAR

Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)

10% Off

Main Highlights

Support all cable internet speed tiers, up to Gigabit (1000 Mbps) service. Separate router required for Wi-Fi
Docsis 3. 1 up to 10x faster download speeds than DOCSIS 3. 0. Docsis 3. 1 is OFDM 2x2+ DOCSIS 3. 0 32x8 channel bonding
Eliminate monthly cable Modem rental fees - up to $156 per year. Meets DOCSIS 3. 1 specifications and is backward compatible with DOCSIS 3. 0 networks
System Requirements- Cable broadband Internet service, Please check your cable Internet service provider web site for data speed tier compatibility and to ensure it provides DOCSIS 3.1 service, otherwise this modem will only work as a DOCSIS 3.0 modem,Microsoft Windows 7, 8, 10, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network, Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
CM1000-1AZNAS is not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with cable bundled voice services

Show Price

9.2

Save 17%

NETGEAR

Netgear Nighthawk Cable Modem WiFi Router Combo C7000-Compatibility Cable Providers Including Xfinity by Comcast, Spectrum, Cox (Renewed)

17% OffFree Shipping

Main Highlights

input voltage120 -240V
COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and Cable bundled voice services
SAVE MONTHLY RENTAL FEES: Model C7000 replaces your cable modem and WiFi router saving you up to $150/yr in equipment rental fees. System Requirements Cable broadband Internet service, Check your cable Internet service provider web site for data speed tier compatibility, Not compatible with Cable bundled voice services, Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, UNIX, or Linux, Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher
BUILT FOR FAST SPEED: Best for cable provider plans up to 400 Mbps speed
FAST Wi Fi PERFORMANCE: Get up to 1800 sq ft wireless coverage and 30 devices connected with AC1900 speed (up to 1900 Mbps)
VERSATILE CONNECTIONS: 4 Gigabit Ethernet ports and 2 USB ports give you fast wired connections to your computer, printer, game box, storage drive, and other devices
MODEM TECHNOLOGY: Engineered with 24x8 channel bonding and DOCSIS 3.0
SAFE & SECURE: Includes parental controls, and supports WEP and WPA/WPA2 wireless security protocols

Show Price

9.0

Save 17%

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

17% OffFree Shipping

Main Highlights

Approved for Cox, Spectrum and Xfinity internet along with other US cable internet providers. Is NOT compatible with ATT, CenturyLink, Verizon, Froniter or other Fiber Optic, DSL or Satellite internet service providers.
Does NOT include Wi-Fi and Does NOT support cable digital voice service.
The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox, Spectrum, Xfinity and others. It is approved for cable internet speed plans up to 1 Gbps. Check your cable ISP website to confirm compatibility.
32 downstream x 8 upstream DOCSIS 3.0 bonded channels, or 2 downstream x 2 upstream OFDM DOCSIS 3.1 channels.
Two 1-Gigabit Ethernet ports

Show Price

Best Value

8.8

Save 57%

ARRIS

ARRIS (SBG8300) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit & AC2350 WiFi ,Comcast Xfinity, Cox, Spectrum & more, 1 Gbps Max Internet Speeds , 4 OFDM Channels

57% OffFree Shipping

Main Highlights

A Trusted Name in Home Connectivity: Get high speeds, low latency, and a two-in-one product! With the ARRIS SURFboard SBG8300 Wi-Fi Cable Modem, you will increase your network capability and get ultra-fast streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing.
Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
Simple and Secure Set-up: Just plug-in, download the SURFboard Central App, and follow the step-by-step intrstuctions to activate the modem, set-up and customize your Wi-Fi network, and add devices to your home network! Once setup is complete, the app provides real-time monitoring of the devices on your network, enhanced parental controls like setting time limits and pausing internet and much more.
Compatibility: The SURFboard SBG8300 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Gigabit/Gigabit x2) and others. It's approved for cable internet speed plans up to 1 Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility.

Show Price

8.6

Save 32%

NETGEAR

NETGEAR Nighthawk WiFi 6Cable Modem Router CAX30-100NAR Compatible with Xfinity, Spectrum, and Cox, AX2700 (Up to 2.7Gbps) DOCSIS 3.1 (Renewed)

32% OffFree Shipping

Main Highlights

Compatible with all major cable internet providers with internet speed up to 2Gbps. Currently certified with Spectrum and Cox (up to 1Gbps) and Xfinity (up to 800Mbps). Future speeds with these service providers may change over time. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
Coverage up to 2,500 sq. ft. and 25 concurrent devices with dual-band WiFi 6 (AX2700) speed (up to 2.7Gbps)
4 X 1 Gig Ethernet ports (supports port aggregation) and 1 USB 3.0 port for computers, game consoles, streaming players, storage drive, and other wired devices
Sets up easily with the Nighthawk app easily manage WiFi settings at the device and network level, test internet speed and monitor data usage
DOCSIS 3.1 and 32x8 channel bonding
Replaces your cable modem and WiFi router. Save up to $168/yr in equipment rental fees
Supports WPA/WPA2/WPA3 wireless security protocols

Show Price

8.3

Save 16%

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

16% OffFree Shipping

Main Highlights

A Trusted Name in Home Connectivity: Better connectivity, better speed. The ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem is designed to bring you superior connectivity, increase your network capability and provide faster streaming and downloading throughout your home. From a trusted brand with over 260 million modems sold and growing. .Telephone Port : None. HD Multi-Media Streaming : Yes.
Save Money: Own your modem and save. Reduce your cable bill up to $168 dollars per year in cable modem rental fees (Savings vary by cable service provider). Certified for use with most U.S. cable internet service providers. For a complete list see additional details below.
Modem Technology: DOCSIS 3.1 is the newest technology available from cable internet providers. Its 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming & enables multi-gig networking (ability to run fast speeds on your copper cable from your internet provider).
System requirements 1. High-speed Internet access account 2.Web browser access Internet Explorer, Google Chrome, Firefox, or Safari 3. Compatible operating systems: 4. Windows 10 5. Windows 8 6. Windows 7 Service Pack 1 (SP1) Note: Although older versions of Microsoft Windows operating systems are no longer specifically supported, they should still function with your SB8200. a.Macintosh 10.4 or higher b. UNIX c. Linux
Simple and Secure Set-up: Plug-in the device, download the SURFboard Central App, and follow the instructions to activate the modem. Connect to a Wi-Fi router for networking.
Compatibility: The SURFboard SB8200 is compatible with major U.S. cable internet providers including Cox (Gigablast), Spectrum (Internet Gig), Xfinity (Blast!/Extreme Pro) and others. It's approved for cable internet speed plans up to 1-Gbps. Check your Internet Service Provider (ISP) website to confirm compatibility.
What's in the Box: When you purchase you will get an ARRIS SURFboard SB8200 Cable Modem, Power Supply, Quick-Start guide, and 2-year warranty card.
Ethernet Ports: Has two 1-Gigabit ethernet ports to connect to a Wi-Fi router or other wired device.
Dedicated Customer Support: Live Chat and Phone Support available 8am -1am EST.
Compatible Service Providers: Advanced Stream, Altice Optimum, Altice Suddenlink, Armstrong, Atlantic Broadband, CableOne/Sparklight, Click CableTV, Comcast/Xfinity, Cox, Grande Communications, New Wave/Sparklight, Mediacom, Midcontinent Communications, RCN, Service Electric, Spectrum, Wave Broadband, WOW, Zito Media

Show Price

8.1

Save 24%

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% OffFree Shipping

Main Highlights

Compatible with all major cable internet providers with internet speed up to 2Gbps. Currently certified with Cox, Spectrum and Xfinity.. Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
Works with any WiFi router: Connect any WiFi router to this modems Ethernet port to support all your wireless devices
Save monthly rental fees: Model CM1200 replaces your cable modem saving you up to $168/yr in equipment rental fees
Four (4) Gigabit Ethernet ports give you fast wired connections to your computer, separate WiFi router, printer, game box, and other devices
Modem technology: Engineered with 32x8 channel bonding, OFDM 2x2, and DOCSIS 3.1
Multi-gig ethernet: Link aggregation combines two 1G ports into one 2G port for faster wired ethernet speed.
Made for use in the US only

Show Price

8.1

Save 14%

Motorola

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds

14% OffFree Shipping

Main Highlights

Ultra-fast DOCSIS 3.1 performance - Delivers true Gigabit-plus speeds. Supports fast internet plans with Comcast Xfinity, Cox, and Spectrum. Backward compatible with 32x8 DOCSIS 3.0.
Pairs with any WiFi router - Seamlessly compatible with any WiFi router to connect all your devices. This cable modem does NOT have a built-in wireless router or telephone call capability.
Multi-gigabit Ethernet speed - A 2.5 GB Ethernet port delivers true high-speed connectivity to even the fastest routers and computers, providing downstream speeds just below 2,500 Mbps and upstream speeds up to 800 Mbps when supported by your internet service plan.
Fast streaming, conferencing, gaming - Applies Active Queue Management (AQM) for reduced Internet latency and better app performance, including online gaming, conferencing, and streaming.
Extreme cost savings - Owning your own modem typically saves the home $168 per year in monthly rental charges. (Savings described is for Comcast Xfinity and vary by service provider.)
Built for reliability - Motorola is a worldwide leader in technology people depend on. Comes with a 2-year warranty and free support from our team of USA technicians.

Show Price

Our Best Overall Choice

Best Choice

9.7

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

10% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Compatible with major cable internet providers including Xfinity, Spectrum, Cox and more. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service. Best for cable provider plans up to 2Gbps
Coverage up to 2,000 sq. ft. and 25 concurrent devices with dual-band WiFi 6 (AX2700) speed (up to 2.7Gbps)
4 X 1 Gig Ethernet ports (supports port aggregation) and 1 USB 3.0 port for computers, game consoles, streaming players, storage drive, and other wired devices
Replaces your cable modem and WiFi router. Save up to $168/yr in equipment rental fees
DOCSIS 3.1 and 32x8 channel bonding
NETGEAR Armor software provides an automatic shield of security for your WiFi and connected devices for real-time protection against hackers and added privacy with VPN. 30-day trial included
NETGEAR routers have security features enabled out of the box with automatic firmware updates, and industry-leading safety features to help protect you and your family
Easily set up and manage your WiFi with the Nighthawk app

Show Price

Related Deals You Might Like for Modems Compatible With Cox

ARRIS (SB6183-RB) Cable Modem - Fast DOCSIS 3.0 16x4 Gigabit Cable Modem, For Comcast Xfinity, Cox, Spectrum and more, 1 Gbps Port, 400 Mbps Max Internet Speed, 2 Year Warranty - Renewed

14% Off

Show PriceView

ARRIS (SB6190) - Cable Modem - Fast DOCSIS 3.0 32x8 Gigabit Cable Modem, For Comcast Xfinity, Cox, Spectrum and more, 1 Gbps Port, 800 Mbps Max Internet Speed, 2 Year Warranty - White

40% Off

Show PriceView

Hitron CODA DOCSIS 3.1 Modem | 1 Gbps Max Internet Speeds | Certified with Comcast Xfinity, Charter Spectrum, Cox & More | 10x Faster Than DOCSIS 3.0 | 1 Gbps Ethernet Cable Modem ONLY

Show PriceView

NETGEAR Cable Modem DOCSIS 3.1 (CM1000) Gigabit Modem, Compatible with All Major Cable Providers Including Xfinity, Spectrum, Cox, For Cable Plans Up to 1 Gbps,Black

20% Off

Show PriceView

ARRIS (SB6190-RB) - Cable Modem - Fast DOCSIS 3.0 32x8 Gigabit Cable Modem, For Comcast Xfinity, Cox, Spectrum and more, 1 Gbps Port, 800 Mbps Max Internet Speed, 2 Year Warranty - Renewed

14% Off

Show PriceView

Linksys CM3024 High Speed DOCSIS 3.0 24x8 Cable Modem, Certified for Comcast/Xfinity, Time Warner, Cox & Charter (Modem Only, No Wifi Functionality)

Show PriceView

NETGEAR Nighthawk Multi-Gig Cable Modem CM2000 - Compatible with All Cable Providers incl. Xfinity, Spectrum, Cox | for Cable Plans Up to 2.5Gbps | DOCSIS 3.1 (Renewed)

12% Off

Show PriceView

NETGEAR Nighthawk Multi-Gig Cable Modem (CM1100) - Compatible With All Cable Providers Incl. Xfinity, Spectrum, Cox - For Cable Plans Up To 2Gbps – 2 x 1G Ethernet Ports - DOCSIS 3.1

6% Off

Show PriceView

ARRIS (S33) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit WiFi For Comcast Xfinity, Cox, Spectrum & More 1 & 2.5 Gbps Ports 2.5 Gbps Max Internet Speeds 4 OFDM Channels 2 Year Warranty

13% Off

Show PriceView

NETGEAR Nighthawk Cable Modem WiFi 6 Router Combo, AX2700, DOCSIS 3.1 - Compatible with Xfinity, Spectrum, Cox

Show PriceView

Deals are Live

Special Amazon deal ends in: