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Black vertical tower modem router with coaxial port four ethernet ports one usb port and status lights

Netgear Inc.

Netgear Inc. CAX30S-100NAS Nighthawk AX2700 DOCSIS 3.1 Cable Modem Router

SKU CH-FVJ1-51BSN MPN CAX30S-100NAS

Combines a DOCSIS 3.1 cable modem with a Wi-Fi 6 router delivering AX2700 speeds and four gigabit Ethernet ports

  • TypeCable Modem
  • Cable InterfaceCATV-Coaxial connector, female
  • Ethernet Ports4 x 1 Gbps
  • USB Ports1
  • StandardsDOCSIS 3.1
  • Wi-Fi GenerationWi-Fi 6 (802.11ax)

Model CAX30S

Speed Up to 2.7 Gbps

  • Wi-Fi 6 AX2700 delivers up to 2.7Gbps wireless speed
  • DOCSIS 3.1 cable modem supports multi-gigabit internet plans
  • Four 1Gbps Ethernet ports provide wired connections for multiple devices
  • 5GHz dual-core processor handles heavy network traffic efficiently
  • 90-day NETGEAR Armor subscription adds network-wide cybersecurity protection

Two-in-one cable modem router

The Netgear Nighthawk CAX30S combines a DOCSIS 3.1 cable modem with a Wi-Fi 6 router in a single unit. It supports provider plans up to 2.7 Gbps wireless throughput and replaces separate rented equipment. Households that already own a standalone router or use fibre-to-the-premises service will not benefit from this integrated design.

Setup and common issues

Connection starts by attaching the coaxial cable, powering the unit, and following the quick-start guide or mobile app. Activation requires a call or online session with the cable provider using the device MAC address. Firmware updates may reset Wi-Fi names, and link aggregation on the LAN ports needs a compatible switch to function.

DOCSIS 3.1 practical limits

The modem bonds up to 32 downstream and 8 upstream channels under DOCSIS 3.0, while DOCSIS 3.1 adds OFDM capacity for higher efficiency. Real-world throughput depends on the provider's plant, node congestion, and the subscribed speed tier. The four 1 Gbps Ethernet ports cap wired clients at one gigabit regardless of WAN provisioning.

Highlights

  • Wi-Fi 6 AX2700 delivers up to 2.7Gbps wireless speed
  • DOCSIS 3.1 cable modem supports multi-gigabit internet plans
  • Four 1Gbps Ethernet ports provide wired connections for multiple devices
  • 5GHz dual-core processor handles heavy network traffic efficiently
  • 90-day NETGEAR Armor subscription adds network-wide cybersecurity protection

Specifications

BrandNETGEAR
SeriesNighthawk
ModelCAX30S-100NAS
Part NumberCAX30S-100NAS
TypeCable Modem
Cable InterfaceCATV-Coaxial connector, female
Ethernet Ports4 x 1 Gbps
USB Ports1
StandardsDOCSIS 3.1
Wi-Fi GenerationWi-Fi 6 (802.11ax)
Wireless StandardAX2700
FeaturesTechnical Specifications:
Wi-Fi Generation: Wi-Fi 6
Built-in high-speed DOCSIS® 3.1 Cable Modem compatible with 32x8 DOCSIS® 3.0
802.11ax dual band WiFi (AX2700): 2.4GHz AX: 3x3 (Tx/Rx) 1024-QAM 40MHz, up to 0.9Gbps & 5GHz AX: 3x3 (Tx/Rx) 1024-QAM 80MHz, up to 1.8Gbps
Backwards compatible with 802.11a/b/g/n/ac WiFi
Powerful dual-core 1.5GHz processor
Four (4) Gigabit Ethernet LAN ports: Dual Gigabit Ethernet port aggregation
One (1) USB 3.0 port—Connect storage devices to store & stream your own media
System Requirements:
Cable broadband Internet service
Please check your cable Inter
Package ContentsNighthawk® AX6/6 Stream WiFi 6 Cable Modem Router (CAX30)
Ethernet cable
Quick start guide
Power adapter
Shipping weight1.91 kg
Package size305 × 254 × 137 mm

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Questions about this item

How can I confirm the Nighthawk AX2700 is delivering its full 2.7Gbps WiFi 6 speed after setup?

Run a speed test from a WiFi 6 device connected to the 5GHz band and compare the result to your ISP plan; the dual-core 1.5GHz processor handles multi-gig traffic so the router should not be the bottleneck.

What comes in the box with the CAX30S-100NAS and what must I provide myself?

The package includes the modem router, an Ethernet cable, a power adapter and a quick start guide; you must supply a coaxial cable from your wall outlet and an active cable internet plan from a supported provider.

Should I choose this AX2700 model or a different capacity for a household with many 4K streams?

The AX2700 6-stream WiFi 6 design with 3x3 1024-QAM on 2.4GHz and DOCSIS 3.1 supports concurrent 4K streaming on multiple devices, making it well suited for high-demand homes.

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