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Black upright Netgear Nighthawk CM3000 cable modem with vertical vents

Netgear Inc.

Netgear Nighthawk CM3000-100NAS DOCSIS 3.1 2.5Gbps Cable Modem

SKU CH-8RXP-TCB62 MPN CM3000-100NAS

A DOCSIS 3.1 cable modem with one 2.5Gbps and two 1Gbps Ethernet ports for multi-gig internet plans

  • Ethernet ports1 × 2.5 Gbit/s + 2 × 1 Gbit/s
  • Supported standardsDOCSIS 3.1
  • Wi-fi generationWiFi 6E or WiFi7
  • Maximum transmission rate32 downstream and 8 upstream SC-QAM channels 2 OFDM Downstre
  • Product typeCable Modem
  • Key featuresTechnical Specifications: 32 downstream and 8 upstream SC-QA

Model CM3000

  • DOCSIS 3.1 mid/high-split technology unlocks 2.5Gbps download speeds
  • 10x faster upload speeds reach 1Gbps for gaming and video calls
  • 5Gbps Ethernet port plus two 1Gbps ports enable link aggregation
  • 32 downstream and 8 upstream SC-QAM channels boost capacity
  • Pairs with WiFi 6E or WiFi 7 routers for whole-home coverage

Nighthawk CM3000 cable modem

The Netgear Nighthawk CM3000-100NAS is a DOCSIS 3.1 cable modem built for multi-gigabit internet plans. It provides one 2.5Gbps Ethernet port and two 1Gbps ports for wired connections. The device supports 32 downstream and 8 upstream SC-QAM channels plus 2 OFDM downstream and 2 OFDMA upstream channels. It is designed for households that need high throughput for gaming, streaming, and large file transfers.

Compatibility checklist

Verify that your cable provider supports DOCSIS 3.1 mid/high-split service before ordering. The modem is not compatible with Xfinity Voice plans. Ensure you have a router with a 2.5Gbps WAN port or link-aggregation support to use the full 2.5Gbps link. A power outlet is required for the included adapter.

Build and daily use

The unit ships with an Ethernet cable, power adapter, and quick start guide. One 2.5Gbps port and two 1Gbps ports allow flexible wired topologies such as link aggregation or separate device connections. Pairing with a WiFi 6E or WiFi 7 router extends wireless coverage. The modem works with major U.S. cable providers for plug-and-play activation.

How it compares

Measured against everything we stock in Cable Modems & Gateway Routers, at today’s prices. Recalculated every night.

Price $245.99
Pricier than about 76% of the 122 comparable items (median $120.99).

Specifications

Product
Brand nameNETGEAR
Product lineNighthawk
Model nameCM3000-100NAS
Product typeCable Modem
Connectivity
Ethernet ports1 × 2.5 Gbit/s + 2 × 1 Gbit/s
Supported standardsDOCSIS 3.1
Wi-fi generationWiFi 6E or WiFi7
Size & build
Shipping weight1.15 kg
Package size250 × 220 × 119 mm
In the box
In the boxNighthawk® DOCSIS® 3.1 High Speed Internet Cable Modem (CM3000)
1 Ethernet cable
Power adapter
Quick start guide
More details
Maximum transmission rate32 downstream and 8 upstream SC-QAM channels
2 OFDM Downstream channels and 2 OFDMA Upstream channels

Other versions of this model

3 more in the same range

Questions about this item

What comes in the box with the CM3000 and what must I buy separately?

The package includes the CM3000 modem, one Ethernet cable, the power adapter and a quick start guide. A compatible router or mesh system is not included and must be purchased separately to create a Wi-Fi network.

Which version of the CM3000 should I choose for my speed tier?

The CM3000-100NAS is a single model supporting DOCSIS 3.1 mid/high-split with a 2.5 Gbps port and two 1 Gbps ports; choose it when your cable plan offers multi-gig download speeds up to 2.5 Gbps and upload up to 1 Gbps.

What does the 2.5 Gbps headline figure mean once the modem is connected?

The 2.5 Gbps figure is the maximum wired throughput on the single 2.5 Gbps Ethernet port; real-world download speeds depend on your ISP plan, network congestion and the router or device connected to that port.

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