Netgear CM3000-100NAS DOCSIS 3.1 cable modem with 2.5G Ethernet port

Netgear CM3000-100NAS DOCSIS 3.1 2.5G Cable Modem | High Split, 1 Port

Name: Netgear CM3000-100NAS DOCSIS 3.1 2.5G Cable Modem | High Split, 1 Port
Brand: Netgear
SKU: CM3000-100NAS
Price: 303.81 USD
Availability: InStock

Netgear|

MPN: CM3000-100NAS

UPC: 606449157185

In Stock

$303.81$465.50

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Key Features

DOCSIS 3.1 cable modem architecture
High-split support for expanded upstream service tiers
2.5G Ethernet interface for multi-gig handoff
Single-port modem design
No integrated Wi-Fi
Netgear CM3000-100NAS model identification

Sustain demanding internet workloads with a cable modem built for DOCSIS 3.1 service tiers and a 2.5G Ethernet connection to your router or firewall. The CM3000-100NAS is designed for high-split deployments, giving cable subscribers a better fit for plans that push more upstream capacity than legacy modem designs can handle. For teams and power users who care about throughput consistency, the value is in the handoff. A 2.5G port helps prevent the modem from becoming the choke point when the rest of the network is ready for more. That matters when you are supporting cloud backups, large file transfers, remote work, or latency-sensitive applications on a faster cable plan. This is the right choice when you want a modem that matches premium service tiers without adding unnecessary complexity. It keeps the design focused on one job: delivering a strong cable connection with the upstream headroom and wired speed needed to make higher-tier service feel worth paying for.

Ideal For

Multi-gig cable internet at home
Small office internet handoff to a separate router
High-upstream workloads such as cloud backup and large uploads
Cable service upgrades where modem bottlenecks must be removed

Why This Product

1Adds a 2.5G Ethernet handoff instead of standard gigabit-only output
2Supports high-split cable service for stronger upstream capacity
3Keeps the design modem-only for use with a preferred router
4Targets premium cable tiers where modem bottlenecks matter

Design

Form Factor

Desktop

Support

Warranty Years

Not specified

Features

Integrated Wifi

No integrated Wi-Fi

Performance

Max Upload Speed Mbps	Not specified
Max Download Speed Mbps	Not specified

Connectivity

Modem Type	Cable modem
Port Count	1 port
Voice Ports	No voice ports
Docsis Version	DOCSIS 3.1
Ethernet Technology	2.5 Gigabit Ethernet

Router Ports

Lan Ports	1 LAN port
Wan Ports	0 WAN ports

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Documentation

User Manual

1.5mb

Frequently Asked Questions

What type of internet service is this modem built for?▾

It is built for cable internet service using DOCSIS 3.1.

Does it support multi-gig wired speeds?▾

Yes. It includes a 2.5G Ethernet port for multi-gig handoff to a compatible router or firewall.

Is Wi-Fi built in?▾

No. This is a modem-only device, so Wi-Fi requires a separate router or access point.

Why choose a high-split modem?▾

High-split support is useful when your cable plan offers more upstream capacity and you want the modem to match that service tier.