Cox Certified Cable Modems

Before You Begin

The table below provides an overview of upcoming changes to equipment requirements for Cox High Speed Internet based on your current device or status. To learn more about Cox Internet packages and speeds, visit www.cox.com/aboutus/policies/speeds-and-data-plans.html.

Only modems and devices purchased or rented directly from Cox are supported by Cox Customer Support. If you obtain your devices from a non-Cox vendor, Cox is not able to support service and technological assistance to these devices.

Certifying Devices for the Cox Network

The DOCSIS 3.0 and 3.1 devices listed below meet our service and performance requirements and are certified for use with all Cox High Speed Internet packages.

• Speeds are not guaranteed and may vary based on individual circumstances.
• Cox does not promote or endorse any particular device or manufacturer for your use.
• internet and Telephone modems purchased in third-party retail are not certified for use with the Cox network.
• Review the modem manufacturer’s specifications to choose a device based on your individual needs.

DOCSIS 3.0

DOCSIS 3.0 8x4 or higher devices are required for all new Cox High Speed Internet customers. Current Cox customers should ensure they have a minimum of a DOCSIS 3.0 device in order to consistently receive optimal speeds.

• Ultimate Classic customers are required to have a minimum of a DOCSIS 3.0 device with a minimum of 16x4 or higher channel bonding to achieve package speeds.
• Ultimate Classic customers should upgrade to a DOCSIS 3.1 device.

DOCSIS 3.1

DOCSIS 3.1 devices listed below are certified for use with all Cox High Speed Internet package speeds.

• Gigablast and Ultimate customers are required to have a DOCSIS 3.1 device.
• Cox-certified DOCSIS 3.1 devices are backward-compatible with DOCSIS 3.0 technology.
• DOCSIS 3.1 service may not be available in all areas.

Special Recommendations for WiFi

• If your primary internet usage will be via wireless devices such as laptops, tablets, and mobile devices, then Cox recommends a dual band 802.11-AC WiFi modem. Dual band 802.11-AC WiFi modems provides the best in-home WiFi experience.
• To learn more about WiFi, visit www.cox.com/wifisupport.

The Highest Compatible Package outlined in the table below is based on a wired connection.