NETGEAR Nighthawk CM3000 — DOCSIS 3.1 Multi-Gig Cable Modem

BRAND NEW • NEVER USED • NEVER ACTIVATED • OPEN BOX

For sale is a NETGEAR Nighthawk CM3000 high-performance DOCSIS 3.1 cable modem, purchased new from Amazon in April 2026.

I originally purchased this modem to upgrade my home cable internet connection. Before installing it, I decided to switch to a fiber internet provider instead, so I no longer have a need for it.

The retail box has been opened, but the modem has never been removed from its original packaging, connected, powered on, or activated.

Everything is included exactly as originally packaged.

Product Highlights

• DOCSIS 3.1 technology with mid/high-split support

• Supports download speeds up to 2.5Gbps and upload speeds up to 1Gbps, depending on your internet provider and service plan

• One 2.5 Gigabit Ethernet port

• Two additional Gigabit Ethernet ports with link aggregation support

• Compatible with major cable internet providers, including Xfinity, Spectrum, and Cox

• Designed for multi-gigabit cable internet service

• Eliminates the need to rent a compatible cable modem from your new in April 2026

• Original retail box opened

• Modem never removed from its original packaging

• Never installed, powered on, or activated

• All original accessories and documentation included

• Stored in original packaging

This is not a refurbished, previously used, or previously activated modem.

What's Included

• NETGEAR Nighthawk CM3000 cable modem

• Original power adapter

• Original Ethernet cable

• Original quick installation guide

• Original retail packaging

Please refer to the photographs of the actual item and its contents.

Important Compatibility Information

This is a cable modem, not a Wi-Fi router. A separate wireless router or mesh system is required for Wi-Fi connectivity.

The CM3000 requires compatible cable internet service. It is not designed for fiber internet connections or cable-provider voice/telephone service.

Please confirm compatibility with your cable internet provider and service plan before purchasing. Available speeds depend on your provider and plan.

Shipping & Returns

The modem will be carefully packaged in an additional shipping carton to protect its original retail box and contents.

• Ships from Pennsylvania

• Buyer pays calculated shipping

• Tracking provided

• 30-day returns accepted; buyer pays return shipping for change-of-mind returns

Thank you for looking!