Netgear Nighthawk CM1100 DOCSIS 3.1 Cable Modem

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Nighthawk Multi-Gig Speed Cable Modem (CM1100)

  • Maximize your Gigabit internet service!

    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 $120 a year. Backwards compatibility with previous DOCSIS standards and works right of the box with Internet cable services like XFINITY from Comcast, Cox and Spectrum.

    The Nighthawk CM1100 Multi-Gig Cable Modem is built for Gigabit cable internet service plans available today and ready for future upgrades.

    • Multi-Gig Experience - Maximize your internet speeds available with link aggregation support. This multi-gig speed cable modem delivers up to 6Gbps download speeds for all your streaming and gaming needs.
    • DOCSIS 3.1 Ready - Up to 10X faster download speeds than the DOCSIS 3.0 standard. DOCSIS 3.1 is equipped with OFDM 2x2 + DOCSIS 3.0 32x8 channel bonding. Fully backwards compatible with previous DOCSIS standards.
    • Ready for Fastest Internet Speeds Available - Built to support all tier service plans available today and in the future. Ideal for Gigabit cable Internet plan.
    • Saves Money - Eliminate monthly cable modem rental fees and save up to $120 per year.
    • Gigabit Ethernet Ports - Two (2) Gigabit Ethernet ports with link aggregation support. Use with any wired devices for faster access and downloads.
    • Works with XFINITY from Comcast, Cox, and Spectrum - Ready out of the box.
    • Easy Installation - Trouble-free cable modem activation via web or a quick service call.  
    • Energy Efficient - Reduce cable modem power usage.
    • IPv6 Compatible
  • Pair with a Multi-Gig compatible router for fast WiFi speeds.

    The dual WAN ports on the CM1100 will allow you to improve the stability and reliability of your Internet connection to a compatible wireless router. This means that you will reach faster internet speeds over WiFi than you have ever before.
  • Take Internet Speeds to a whole new level

    Indulge in the ultimate download and upload speeds with top speeds of up to 10,000Mbps (that's 10Gbps fast).
  • Gaming, streaming or using multiple WiFi devices?

    When paired with a compatible multi-gigabit router, you can get the best experience for your high speed gaming and heavy data-using applications.
  • DOCSIS 3.1 modems are fully backward-compatible

    Upgrading to a DOCSIS 3.1 modem means you'll still enjoy your current Internet service and be ready for the Gigabit service speeds available in your service area.
  • More speed to more devices

    Gigabit Internet speeds cominbed with fast WiFi available means all of your devices will surf, stream, & game at lightning fast speed.

Technical Specifications

Package Contents
• Nighthawk Multi-Gig Speed Cable Modem—DOCSIS 3.1 (CM1100)
• Ethernet cable
• Quick install guide
• Power adapter

Physical Specifications
• Dimensions: 8.8 x 3.4 x 5.9 in (224 x 86 x 150 mm)
• Weight: 1.00 lb (460g) Standards
• Two (2) Gigabit Ethernet ports
• One (1) WAN coaxial cable connection

Technical Specifications
• Simple—CD-less installation
• 32 downstream & 8 upstream channels
• 2x2 OFDM
• Memory: 128 MB NAND flash 256 MB RAM
• DOCSIS Quality of Service (QoS)

Advanced Features
• Gigabit Ethernet ports support link aggregation for true Multi-Gig speed
• Backward compatible 32x8 channel bonding in DOCSIS® 3.0 mode
• Supports IPv6 - Internet standard
• Gigabit Ethernet ports for faster access and downloads

• 24/7 Dedicated technical support for Costco Members (888) 228-4719
• Join the NETGEAR Community Forum. Visit

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