US
NETGEAR

NETGEAR Nighthawk C7100V Cable Modem Router with Voice

  • Xfinity cable and voice plans up to 600Mbps
  • DOCSIS 3.0 cable modem
  • AC1900 dual band WiFi
  • 2 VoIP phone ports
  • 4 gigabit Ethernet + 2 USB
  • Optional battery backup: 8 hr standby, 5 hr talk
  • 10.15 x 3.55 x 10.8 in, 2.8 pounds
  • 1-year warranty

Updated 25 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A three in one Xfinity modem, router and phone adapter that removes rental equipment for internet and home phone. It is limited to Xfinity plans up to its rated speed.

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ASIN: B01M1AOEDAModel: C7100VCategory: Modem Router Combos

Overview

Xfinity customers with home phone service get one Netgear box that combines a cable modem, a dual band Wi-Fi router and two phone line ports. Four gigabit ports wire up a PC, console or TV.

Combining modem, router and voice adapter in one unit tidies the setup and covers Xfinity voice. Plans above its supported speed and other providers' voice services are not covered.

Who it's for

Xfinity households with a landline that want fewer boxes. Faster plans or other providers need a different modem.

Pros and cons

Pros
  • Modem, router and phone in one
  • Two phone lines
  • Four gigabit ports
  • Two USB ports
Cons
  • Xfinity only for voice
  • Capped at its plan speed
  • Older Wi-Fi standard

Performance notes

Internet speed is bounded by the DOCSIS channel capacity and the Xfinity plan it supports. Wi-Fi uses beamforming on dual bands for steady coverage. Voice service runs over the phone ports once Xfinity activates it.

Specifications

BrandNETGEAR
ModelC7100V
Dimensions & fit
Item weight2.8 pounds
Item dimensions l x W x h10.15 x 3.55 x 10.8 inches
Capacity & performance
Max plan speedUp to 600Mbps
Compatibility & installation
Compatible providersXfinity cable and voice
Warranty & support
Warranty description1-year
Other details
Data transfer rateAC1900
Security protocolWEP, WPA-PSK, WPA2-PSK
Modem typeDOCSIS 3.0 cable modem with voice
Frequency band classDual-Band
Number of ethernet ports4 gigabit
Telephony ports2 VoIP
USB ports2
Builtin mediaModem router, Ethernet cable, power cord, telephone cable, quick install guide
Other special features of the productBeamforming, Guest Mode, WPS, optional battery backup

Frequently asked questions

How do I set up the Netgear C7100V with Xfinity?

Connect it to the cable line, then activate it with Xfinity for internet and voice. The box includes an Ethernet cable, a telephone cable and a power cord.

Does the C7100V work with Spectrum or Cox?

The listing names Xfinity cable and voice plans only.

How long does the C7100V battery backup last?

The optional battery backup gives up to 8 hours of standby and 5 hours of talk time. The battery is optional.

How many phone lines does the C7100V support?

2 phone lines through 2 VoIP ports.