Skip to main content
Skip to main content
NETGEAR <p>Get the fastest internet speeds of today and tomorrow with a DOCSIS 3.1 cable modem. Works with US Cable Internet Providers Xfinity<sup>®</sup> from Comcast, Spectrum<sup>®</sup>, Cox<sup>®</sup> &amp; more (not compatible with Cable bundled voice services).</p> <p><a href="https://kb.netgear.com/000063930/Which-ISPs-are-compatible-with-my-NETGEAR-cable-modem" target="_blank"><strong>Certified with Xfinity with speeds up to 800Mbps, Spectrum service of 1Gbps, and with Cox service speeds of 1Gbps.Wireless router not included.</strong></a></p> CM1100 CM1100-100NAS CM1100-100NAS

DOCSIS® 3.1 Cable Modem (CM1100) armor

Nighthawk® Multi-Gig Cable Modemarmor

Get the fastest internet speeds of today and tomorrow with a DOCSIS 3.1 cable modem. Works with US Cable Internet Providers Xfinity® from Comcast, Spectrum®, Cox® & more (not compatible with Cable bundled voice services).

Certified with Xfinity with speeds up to 800Mbps, Spectrum service of 1Gbps, and with Cox service speeds of 1Gbps.Wireless router not included.

DOCSIS® 3.1 Cable Modem (CM1100)

Nighthawk® Multi-Gig Cable Modemarmor

Get the fastest internet speeds of today and tomorrow with a DOCSIS 3.1 cable modem. Works with US Cable Internet Providers Xfinity® from Comcast, Spectrum®, Cox® & more (not compatible with Cable bundled voice services).

Certified with Xfinity with speeds up to 800Mbps, Spectrum service of 1Gbps, and with Cox service speeds of 1Gbps.Wireless router not included.

Join Waitlist

Order now and we’ll ship as soon as it’s back in stock.

Join Waitlist

Notify me when this item comes back in stock

Please enter a valid e-mail address.

You are already on the list. We’ll notify you shortly.

Successfully registered.

Get it by icon
Ships by icon

Get It By: Ships By: with complimentary 2-day shipping

Free Shipping & Returns

Ultra-High Speed Connections with DOCSIS® 3.1

Delivers true Multi-Gig Internet speeds with link aggregation support

DOCSIS® 3.1 provides up to 10X faster download speeds than DOCSIS® 3.1

Certified with Xfinity with speeds up to 800Mbps, Spectrum service of 1Gbps, and with Cox service speeds of 1Gbps. Please check your cable Internet service provider web site data speed tier compatibility (not compatible with Cable bundled voice services). Wireless router not included.

Supports the fastest internet service plans available today and ready for future upgrades

Save up to $168* per year by owning your cable modem rather than paying a monthly rental fee from your Internet provider

Technical Specifications

NETGEAR_CM1100_Product_Diagram
CM1100_tech_specs_image_1
CM1100_tech_specs_image_2
  • Dimensions : 8.8 x 3.4 x 5.9in (223.5 x 88.9 x 150mm)
  • Weight : 1.00lb(460g)
  • Built-in high-speed DOCSIS® 3.1 channel bonding cable modem
  • Two (2) Gigabit Ethernet port with auto-sensing technology
  • One (1) WAN coaxial cable connection
  • 2 OFDM downstream & 2 OFDMA upstream channels
  • Simple CD-less installation
  • IPv6 next generation Internet addressing support
  • DOCSIS Quality of Service (QoS)
  • 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
  • Nighthawk® Multi-Gig Speed Cable Modem—DOCSIS 3.1 (CM1100)
  • Ethernet cable
  • Quick install guide
  • Power adapter

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

  • Support : 24/7 basic technical support provided for 90 days from purchase date, when purchased from a NETGEAR authorized reseller.
  • Support
  • Footnotes : Maximum rate is derived from DOCSIS® 3.1 specifications and actual throughput will vary depending on your Internet subscription with your provider. NETGEAR makes no express or implied representations or warranties about this product's compatibility with any future standards.
  • *Savings shown may vary by cable service providers.

We're Always Here to Help

download-circle-black
Track and manage orders & register your products
VISIT MY.NETGEAR.COM
community-black
Search through FAQs in our community forums
NETGEAR COMMUNITY
question-mark-black
Check out self-help tool or contact support
NETGEAR SUPPORT