NETGEAR Cable Modem DOCSIS 3.1 (CM1000) Gigabit Modem, Compatible with All Major ISP Providers Including Xfinity, Spectrum, Cox, for Cable Plans Up to 1 Gbps,Black

Key Specifications

Connectivity Technology
Ethernet
Compatible Devices
Router
Internet service provider
xfinity;spectrum;cox;optimum
Brand
NETGEAR
Product Dimensions
5.9"L x 5.4"W x 8.8"H
Voltage
‎100240 Volts

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NETGEAR
4.2
3827 reviews
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NETGEAR Cable Modem DOCSIS 3.1 (CM1000) Gigabit Modem, Compatible with All Major ISP Providers Including Xfinity, Spectrum, Cox, for Cable Plans Up to 1 Gbps,Black

The NETGEAR CM1000 is a high-performance cable modem designed for gigabit-speed internet plans. Equipped with DOCSIS 3.1 technology, it provides reliable and fast wired connections for home and office networks. Compatible with major U.S. cable providers including Xfinity, Spectrum, and Cox, this modem eliminates monthly ISP rental fees and works seamlessly with any separate Wi-Fi router to deliver wireless coverage across your home.

Free Shipping
2-Year Warranty
30-Day Returns

Key Features

Compatible with all major cable internet providers with internet speed up to 1Gbps. Currently certified with Spectrum and Cox (up to 1Gbps), Xfinity (up to 800Mbps). Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
Model CM1000 replaces your cable modem saving you up to 168/year in equipment rental fees
Connect any WiFi router (separate unit) to this modem's Ethernet port to support all your wireless devices
1 Gigabit Ethernet port connects to your computer or separate WiFi router
Made for use in the US only

The NETGEAR CM1000 is a high-performance cable modem designed for gigabit-speed internet plans. Equipped with DOCSIS 3.1 technology, it provides reliable and fast wired connections for home and office networks. Compatible with major U.S. cable providers including Xfinity, Spectrum, and Cox, this modem eliminates monthly ISP rental fees and works seamlessly with any separate Wi-Fi router to deliver wireless coverage across your home.

Available Colors

Black
+ more

Key Considerations

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1. DOCSIS 3.1 Cable Modem Supports high-speed cable internet plans up to 1 Gbps. Backward compatible with DOCSIS 3.0 for older service plans. Provides stable, fast internet for streaming, online gaming, video conferencing, and downloads. 2. Wired Connectivity One 1-Gigabit Ethernet port connects directly to your computer or a separate Wi-Fi router. Ensures low-latency, high-speed wired performance for demanding applications. 3. ISP Compatibility Certified for Xfinity (up to 800 Mbps), Spectrum (up to 1 Gbps), and Cox (up to 1 Gbps). Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH, or bundled voice services. 4. Ownership & Cost Savings Owning your modem eliminates monthly rental fees (up to ~$168/year). Compact design (5.9″ × 5.4″ × 8.8″) fits neatly into any home or office setup. 5. Future-Proof Technology DOCSIS 3.1 ensures support for next-generation cable internet speeds. Ideal for households with multiple high-bandwidth devices when paired with a Wi-Fi router.

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✅ Strengths

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DOCSIS 3.1 Technology – Future-ready for gigabit cable internet.

3

High-Speed Performance – Supports up to 1 Gbps wired speeds.

4

Reliable Wired Connection – Single Gigabit Ethernet port ensures low-latency performance.

5

Cost Savings – Avoid ISP rental fees, potentially saving up to $168/year.

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Broad ISP Compatibility – Works with most major U.S. cable providers.

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Compact & Durable – Small footprint for easy placement.

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⚠ Trade-Offs

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No Built-in Wi-Fi – Requires a separate router for wireless coverage.

10

Single Ethernet Port – Limits direct wired connections without a switch.

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Limited ISP Compatibility – Not for fiber, DSL, or bundled voice services.

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Moderate Maximum Speed on Xfinity – Certified for up to 800 Mbps on Xfinity plans.

These factors represent the most critical aspects that will impact your satisfaction with this product.

Customer Reviews

Lightning-Fast Modem That Delivers
2025-12-03T05:45:09.167Z

The NETGEAR Nighthawk CM2050V is a beast! Setup was quick, and speeds are insanely fast—perfect for gaming, streaming, and multiple devices. Multi-gig support ensures future-proofing, and Xfinity Voice works flawlessly. Reliable, powerful, and worth every penny.

U
Scott j. Elphison
Easy to set up, good modem all around
2025-12-03T05:45:26.799Z

I got a notice from my internet company, xFinity, that I should upgrade my old DOCSIS 3.0 modem to a newer 3.1 version. Even though my internet package only gets me up to 59Mbps, nowhere near the gigabyte speed offered by the new modems, I decided to replace my old modem anyway, since I was starting to get more internet outages over the past few weeks.

U
Steven Gorman

Frequently Asked Questions

Final Verdict

The NETGEAR CM1000 is a DOCSIS 3.1 cable modem designed for high-speed wired internet users who want reliable performance and to avoid monthly ISP rental fees. While it does not include Wi-Fi, it works seamlessly with any separate router to provide wireless coverage. Ideal for HD streaming, gaming, and large file downloads, the CM1000 delivers fast, consistent, and future-ready internet for cable plans up to 1 Gbps.