Overview

  • CABLE INTERNET AND WIFI MADE FOR YOUR HOME: This two-in-one cable modem and WiFi router puts every setting in your hands, from your WiFi names and passwords to how your network runs, so it works the way your household needs.
  • APPROVED FOR YOUR PROVIDER AND PLAN: Works with Xfinity internet plans up to 2.37Gbps, Spectrum up to 1Gbps, and Cox up to 1Gbps. Not compatible with Verizon, AT&T, CenturyLink, DirecTV, DISH, or bundled voice plans. ISP activation required after setup.
  • GET THE FULL SPEED OF YOUR PLAN: DOCSIS 3.1 supports Gigabit+ cable internet plans, so large downloads finish faster and 4K streaming, gaming, and video calls can all run at once. Actual speeds vary by plan and provider.
  • WIFI 6 COVERAGE FOR THE WHOLE HOME: Stay connected in every room with dual-band AX6000 WiFi 6 covering up to 2,500 sq ft and capacity for 30+ connected devices across your home. Real-world coverage depends on home size, layout, and building materials.
  • MULTI-GIG WIRED CONNECTIONS FOR YOUR FASTEST DEVICES: One 2.5 Gig Multi-Gig port and four Gigabit Ethernet ports keep gaming consoles, desktops, and streaming devices hardwired for the lowest latency and the most stable connection in your home.
  • SET UP AND MANAGE YOUR NETWORK WITH THE NIGHTHAWK APP: Download the free Nighthawk app on iOS or Android for guided setup. Manage WiFi, run speed tests, pause devices, and set up guest networks from anywhere. Active internet required.
  • RELIABLE PERFORMANCE, FREE EXPERT HELP: DOCSIS 3.1 OFDMA improves response times during peak-hour congestion, keeping speeds steady when the whole family is online. FCC certified for use in the United States.
  • YOUR SECURITY AND PRIVACY ARE OUR TOP PRIORITY: NETGEAR routers include WPA3 WiFi encryption, firewall protection, and denial-of-service attack prevention to help keep your family and devices safe.
  • NETGEAR ARMOR SECURITY (30-DAY FREE TRIAL): NETGEAR Armor provides enhanced protection against hackers, malware, and identity theft, at home or on the go. A separate subscription is required to continue after the trial.

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Specifications

Capacity & configuration

Encryption Type
WPA2-PSK
Firewall Type
NAT
Port Type(s)
Co-Axial

Dimensions & weight

Product Name
NETGEAR Nighthawk DOCSIS 3.1 Modem Router Combo CAX80, WiFi 6, 6 Gbps, Multi-Gig, Xfinity/Spectrum/Cox, Dual-band
Product Height
8.5 inches
Product Length
10.4 inches
Product Width
4.3 inches
Product Weight
2.55 pounds

Features

Brand
NETGEAR
Color
Black
Data Encryption
Yes
Security Features
VPN support, 128-bit AES encryption with PSK, DoS attack prevention, separate and secure guest network
Parental Controls
Yes
Band Technology
Dual
Ethernet Standard
10/100/1000/2500
Number Of Connected Devices
25
Frequency Band
2.4 GHz
Wireless Networking Standard
Wi-Fi 6
Wireless Standard
AC
Wi-Fi Range
3000 square feet
Input/Output Technology
MU-MIMO (Multi-user Multiple-Input Multiple Output)
Number of 2.4Ghz Streams
1
Number of 5.0Ghz Streams
1
Wi-Fi Mesh System
No
Ethernet Switch
Yes
DOCSIS Compliant
Yes
ENERGY STAR Certified
No
DOCSIS Certification
3.1
App Compatible
Yes
App Name
NETGEAR Nighthawk App
Beamforming
Yes
Integrated Modem
Yes
Wireless
Yes
Channel Bonding
32 x 8
Number Of WAN Ports
1
Number Of LAN Ports
5
Wired Speed
2500 megabits per second
Wi-Fi Speed
6 gigabits per second
Gigabit Ethernet Speed
Yes
Auto Speed Sensing
Yes
System Requirements
Cable broadband Internet service
Bluetooth Enabled
No
Internet Service Provider (ISP) Compatibility
Cox Communications
UPC
606449143485

Power & warranty

Model Number
CAX80-100NAS
Warranty - Parts
1 year
Warranty - Labor
1 year

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
CRUZGOct 16, 2026 · Verified purchase ★★★★☆

Works as advertised, app was bad - Easy to plug in and streamline my preexisting set up. My ISP was able to find the mac address and replace our modem with it easily as well. Directions are clear for the product, though the Nighthawk App was a little whack it. The app was just buggy and unhelpful. Often got stuck at the 2nd step and would return to the first. Was much easier to set up with the manual instructions.

Lisha517Oct 3, 2026 · Verified purchase ★☆☆☆☆

Bricked in less than a year - Had it less than a year and a power outage bricked the whole system. Never again.

JULIEPOct 2, 2026 · Verified purchase ★★★★☆

Wi-Fi 6 Router with DOCIS 3.1 Cable Modem - We had a different Nighthawk (4 years old) and it was not compatible with Xfinity's new plan. I was impressed with the old one. This one was easy to setup and works like a charm. Currently running 10 wifi things and two cat6. No issues.

LisaSep 23, 2026 · Verified purchase ★★☆☆☆

Netgear - I am very disappointed in this product, I only had it barely a year and it just stopped working after a storm and I was without Internet for over a week and it was really an inconvenience. The manufacturer warranty was up and the phone numbers that I called were bogus. I spent $500 on this modem router combo and had to end up going back to the Internet companies factory, modem router. I would never recommend this product to anybody.

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat