DOCSIS 3.1

Nighthawk® Multi-Gig Speed
Cable Modem for XFINITY® Voice

MULTI-GIG SPEED CABLE MODEM FOR XFINITY® VOICE

Model: CM1150V

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NIGHTHAWK MULTI-GIG SPEED CABLE MODEM FOR XFINITY VOICE

NETGEAR® Nighthawk® Ultra-High Speed Cable Modem for XFINITY® Voice (CM1150V) delivers gigabit speed cable internet and the best call clarity. This high-performance DOCSIS® 3.1 cable modem supports all of today’s internet service plans and is designed for the fastest internet speed tiers in near future. CM1150V includes two telephones ports that automatically prioritize voice over internet for clear and uninterrupted calls. Enhanced call features include 3-way conference calling, caller ID, call forwarding and more. Gigabit Ethernet ports (with LAN port aggregation) for faster wired connections. Easily install this modem with a service call and save up to $156 per year on monthly cable modem rental fees.

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NETGEAR Nighthawk® CM1150V Cable Modem with Voice is built to support all of today’s Internet service plans and designed for the fastest speed tiers available in near future.


  • Ideal for Gigabit cable Internet plan. Delivers true Multi-Gig Internet speeds with link aggregation** support.
  • Fast self-activation for XFINITY® customers –Get connected without a service call.
  • DOCSIS® 3.1 technology supports speeds up to 10X faster than the DOCSIS® 3.0 standard. Fully backwards compatible with previous DOCSIS® standards.
  • Built for XFINITY® from Comcast Internet with Voice with enhanced call features including 3-way conference calling, caller ID, call forwarding and more.
  • Two (2) telephone ports automatically prioritize voice over internet for the best call clarity.
  • Gigabit Ethernet Ports—Four (4) Gigabit Ethernet ports (allows 2 LAN port aggregation to double maximum wired speeds). Use with any wired devices for faster access and downloads.
  • Save money by eliminating monthly cable modem rental fees and save up to $156 per year*

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

Use an Ethernet cable to connect the CM1150V cable modem Ethernet ports to WAN port of your existing WiFi router, WiFi System or directly to your computer and get high-speed connectivity for all your devices. Aggregate two (2) LAN ports to double maximum wired speeds (compatible WiFi router like the Nighthawk AX8). With two integrated telephone lines and support for enhanced calling features such as 3-way conferencing, caller ID, call forwarding and more, the C1150V is an ideal choice for a home office. Works with all Internet speed tiers with voice plans.

Technical Specifications

  • Modem

    • DOCSIS® 3.1 Cable Modem with two (2) telephone ports

  • Product Diagram

  • Number of Ethernet Ports

    • Four (4) Gigabit Ethernet ports

  • Key Features

    • Two (2) telephone ports

    • Enhanced call features include 3-way conference calling, call forwarding and more

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

    • DOCSIS® 3.1 technology supports speeds up to 10 times faster than the DOCSIS® 3.0 standard

    • 32 downstream and 8 upstream channels with 2x2 OFDM

    • Backward compatible 32x8 channel bonding in DOCSIS® 3.0 mode

    • Required for the fastest Gigabit XFINITY Internet with Voice plans

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

    • 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

    • Requires XFINITY® from Comcast Voice service plans

  • Physical Specifications

    • Dimensions: 6.1 x 3.4 x 10.3 in (155 x 87 x 261 mm)

    • Weight: 1.33 lb (603 g)

  • Package Contents

    • Nighthawk® Multi-Gig Speed Cable Modem for XFINITY® Voice (CM1150V)

    • One (1) Ethernet cable

    • One (1) RJ1 telephone cable

    • Quick install guide

    • Power adapter

  • Standards

    • Four (4) Gigabit Ethernet ports

    • One (1) WAN coaxial cable connection

    • Two (2) telephone line ports

* Equipment rental fees vary by service providers.

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.

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.

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 CM1150V 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.