DOCSIS 3.1

Nighthawk® Multi-Gig
Speed Cable Modem

MULTI-GIG SPEED CABLE MODEM

Model: CM1100

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NIGHTHAWK MULTI-GIG SPEED CABLE MODEM DOCSIS® 3.1

Nighthawk® Multi-Gig Speed Cable Modem by NETGEAR® supports link aggregation to deliver true multi-gig internet speeds. It improves your internet connections and provides smooth online streaming and gaming. Eliminate internet service provider equipment rental fees and save up to $156 a year. Backwards compatibility with previous DOCSIS® standards and works right of the box with internet cable services like XFINITY® from Comcast, Spectrum and Cox. The Nighthawk CM1100 Multi-Gig cable modem is built for Gigabit cable internet service plans available today and ready for future upgrades.

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DOCSIS 3.1 technology brings blazing fast cable Internet speeds to your home.

DOCSIS 3.1 technology takes internet speeds to a whole new level by increasing uplink speed to the cloud for critical uploads like security camera feeds and also by considerably reducing latency for gaming and enhancing user experience for high-speed applications like virtual and augmented reality. NETGEAR CM11000 DOCSIS® 3.1 Cable Modem provides a true Multi-Gig experience with up to 2Gbps download speeds enabled by link aggregation and compatible internet service plans. A Gigabit Ethernet port provides faster wired speeds to connect your router or computer.


  • Delivers true Multi-Gig Internet speeds with link aggregation support (compatible router Nighthawk AX8 8-Stream Wi-Fi 6 Router)
  • Meets DOCSIS® 3.1 specifications and is backward compatible with DOCSIS® 3.0 networks
  • Works right out of the box and supports all Internet speed tiers from XFINITY® from Comcast, Spectrum, and Cox®. You can easily self-activate without needing a service call.
  • Save up to $156 per year by eliminating monthly cable modem rental fees
  • Gigabit Ethernet Ports - Fastest wired speeds to connect your router or computer. create two home networks both capable of gigabit speeds and aggregate for the fastest Multi-Gig speeds.
  • Supports IPv6 - Internet standard




Multi-Gig Speeds with Compatible WiFi Router & Service Plans

Ultra-High Speed Connections with DOCSIS® 3.1

DOCSIS 3.1 offers a huge jump in download and upload internet speeds, supporting up to 10 Gbps download and 1 Gbps upload speeds. Since the technology is backwards compatible, upgrading to a DOCSIS 3.1 modem means you’ll still enjoy your current internet service and be ready for the fastest speeds available in your area when your service provider upgrades to DOCSIS 3.1.

Works with your WiFi Router

If you pay for super-fast internet plans but don't have a DOCSIS 3.1 cable modem to support these speeds, you're not getting the speeds you pay for! Use an Ethernet cable to connect the CM1100 cable modem output port to WAN port of your existing WiFi router, WiFi System or directly to your computer and get high-speed connectivity for all your devices. Go beyond Gigabit speeds— set up Ethernet port aggregation with Nighthawk AX8 Wi-Fi 6 router for Multi-Gig internet speeds.

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Technical Specifications

  • Modem

    • CableLabs and Comcast certified DOCSIS® 3.1 Cable Modem

  • Product Diagram

  • Number of Ethernet Ports

    • Two (2) Gigabit Ethernet ports with auto-sensing technology

  • Key Features

    • Delivers true Multi-Gig Internet speeds with link aggregation support

    • Meets DOCSIS® 3.1 specifications and is backward compatible with DOCSIS® 3.0 networks

    • Works right out of the box and supports all Internet speed tiers from XFINITY® from Comcast, Spectrum and Cox®

    • Save up to $156 per year by eliminating monthly cable modem rental fees

    • Supports IPv6 - Internet standard

  • 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

    • Not compatible with Cable bundled voice services

  • Physical Specifications

    • Dimensions: 8.8 x 3.4 x 5.9 in (224 x 86 x 150 mm)

    • Weight: 1.00 lb (460 g)

  • Package Contents

    • Nighthawk® Multi-Gig Speed Cable Modem—DOCSIS® 3.1 (CM1100)

    • Ethernet cable

    • Quick install guide

    • Power adapter

  • Standards

    • Two (2) Gigabit Ethernet ports

    • One (1) WAN coaxial cable connection

Savings are shown for Xfinity and vary by cable service provider

10Gbps is the maximum data transfer rate in the DOCSIS® 3.1 standard. In practice, your Internet speeds will be less, as the transfer rate may be reduced by the volume of network traffic or your service plan.

Maximum rate is derived from DOCSIS® 3.1 specifications and actual throughput will vary depending on your Internet subscription with your provider.

Multi-Gig Internet speeds require compatible service plans and equipment (Recommended: Nighthawk AX8 8-Stream Wi-Fi 6 Router).

NETGEAR makes no express or implied representations or warranties about this product’s compatibility with any future standards.

Customer-owned modems may not be compatible with certain cable networks. Please check with your cable provider to confirm this NETGEAR modem is allowed on your cable network. This product not compatible with Cable bundled voice services.

* Equipment rental fees vary by service providers.

Ideal Uses

Upgrade to the Fastest Tiers

Internet service providers are extending Gigabit internet service throughout the country. Enjoy the fastest broadband internet speeds offered today and be ready for future upgrades.

For Multi-Gig Speeds

The dual WAN ports on the CM1100 allow for Multi-Gig speeds internet speeds when paired with compatible router (Nighthawk AX8 8-Stream Wi-Fi 6 Router) and service plans.

Own and Save Money

If your cable modem is through your cable company, you are probably paying a monthly rental fees that you can easily avoid by owning your modem. And, get significantly higher upload and download speeds!

NETGEAR Warranty

This product is backed by a NETGEAR limited 1-year Hardware Warranty.

24/7 basic technical support provided for 90 days from purchase date, when purchased from a NETGEAR authorized reseller.