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 800Mbps, 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 AX2700 WiFi 6 covering up to 2,000 sq ft and capacity for 25+ connected devices. Real-world coverage depends on home size, layout, and building materials.
  • WIRED CONNECTIONS FOR YOUR FASTEST DEVICES: 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 (90-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
WPA
Firewall Type
NAT
Port Type(s)
Co-Axial

Dimensions & weight

Product Name
NETGEAR Nighthawk DOCSIS 3.1 Modem Router Combo CAX30S, WiFi 6, 2.7 Gbps, Multi-Gig, Xfinity/Spectrum/Cox, Dual-band
Product Height
8.3 inches
Product Length
10 inches
Product Width
4.3 inches
Product Weight
2.1 pounds

Features

Brand
NETGEAR
Color
Black
Data Encryption
Yes
Security Features
128-bit AES encryption with PSK, VPN support, firewall protection, DoS attack prevention, Nighthawk Armor, supports WPA/WPA2/WPA3 wireless security protocols
Band Technology
Dual
Ethernet Standard
10/100/1000
Number Of Connected Devices
25
Frequency Band
2.4 GHz
Wireless Networking Standard
Wi-Fi 6
Wireless Standard
AC
Wi-Fi Range
2000 square feet
Input/Output Technology
MU-MIMO (Multi-user Multiple-Input Multiple Output)
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
4
Wired Speed
1000 megabits per second
Wi-Fi Speed
2.7 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
606449156416

Power & warranty

Model Number
CAX30S-100NAS
Warranty - Parts
1 year
Warranty - Labor
90 Days

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
ChornyakOct 22, 2026 · Verified purchase ★★★★★

Not thrilled - Bought this for having a home VPN , it was an absolute nightmare to set up

NancyOOct 21, 2026 · Verified purchase ★★★★★

Simple and easy - More WiFi things were easy to connect than with my previous router. Fast and easy to set up.

STEVEOct 9, 2026 · Verified purchase ★★★★★

Great Product - This router is easy to use, powerful and a quality product. We have it upstairs in our home and we have great connectivity throughout the house.

VladOct 5, 2026 · Verified purchase ★★★★★

Excellent Modem - We love the model. The performance has been solid!

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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