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Netgear Netgear C6900-100NAR Nighthawk Dual Band AC1900 Cable Modem Router , BLK (Renewed)
Amazon Renewed

Netgear Netgear C6900-100NAR Nighthawk Dual Band AC1900 Cable Modem Router , BLK (Renewed)

Bottom line: The Netgear Netgear C6900-100NAR Nighthawk Dual Band AC1900 Cable Modem: Cable modem and WiFi router in one unit, so one box replaces two; main trade-off: renewed unit, so cosmetic condition may vary from new.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For home networking and Wi-Fi gear, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Cable modem and WiFi router in one unit, so one box replaces two
  • ✓ AC1900 dual-band WiFi with up to 1.9 Gbps combined speed
  • ✓ 1.6GHz combined processor helps when several devices stream or game at once
  • ✓ Owning it ends monthly cable modem rental fees
  • ✓ Listed for XFINITY, Spectrum, Cox and Cablevision cable service

Cons

  • ✗ Renewed unit, so cosmetic condition may vary from new
  • ✗ AC1900 is WiFi 5, so it lacks newer WiFi 6 features
  • ✗ Cable-only modem, so it is no use on DSL or fiber service
  • ✗ DOCSIS version and port count are not stated in this listing

Manufacturer description

The Netgear Nighthawk C6900 puts a cable modem and an AC1900 dual-band WiFi router in one box. That means one device to set up, one power outlet, and less clutter behind your TV or desk. This listing is the renewed C6900-100NAR in black, sold through Amazon Renewed. On the wireless side, the C6900 delivers up to 1.9 Gbps of combined dual-band WiFi speed. That gives you room to run gaming consoles, 4K streaming boxes, and laptops on the same network. A 1.6GHz combined processor handles routing work so traffic stays responsive while several devices are busy at once. Because you own the…

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SpecPicks Verdict

SpecPicks scored Netgear Netgear C6900-100NAR Nighthawk Dual Band AC1900 Cable Modem… using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. Amazon Renewed's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does the Netgear C6900 work with Xfinity and Spectrum?

Netgear lists the C6900 as ideal for XFINITY from Comcast, Spectrum, Cox, Cablevision and other cable providers. Check with your provider that the model is approved before you activate it.

Do I need a separate router with the Nighthawk C6900?

No. The C6900 is a two-in-one device that combines a cable modem with a dual-band AC1900 WiFi router, so it handles both your internet connection and your home wireless network.

How fast is the WiFi on the Netgear C6900?

It is rated for up to 1.9 Gbps of combined dual-band WiFi speed and uses a 1.6GHz combined processor. Your actual speeds depend on your cable internet plan and your devices.

What input voltage does the C6900 support?

The listing states an input voltage range of 100-240V, so the power supply is multi-voltage compatible. The modem still needs a compatible cable internet connection to work.

What warranty comes with the renewed C6900-100NAR?

This unit is sold through Amazon Renewed, so the coverage differs from a new Netgear unit. Check the product listing for the current renewed warranty terms before you buy.

Key Features

  • input voltage：100 -240V
  • EXTREMELY FAST WiFi—Up to 1.9 Gpbs combined WiFi speed for extreme gaming and streaming
  • 1.6GHz combined processor speed boosts performance for streaming & gaming
  • Two-in-One - Cable Modem + WiFi Router
  • Save up to $120 a year - No rental fees
  • Ideal for XFINITY from Comcast, Spectrum, Cox, Cablevision & more

Full Specifications

BrandNETGEAR
ColorBLK
Voltage100240 volts
Coveragewhole home
Frequency1.6 GHz
Model NameC6900-100NAR
Unit Count1 Count
Antenna TypeInternal
ConnectivityWiFi
Model NumberC6900-100NAR
Control MethodApp
Mfr Part NumberC6900-100NAR
Number of Ports4
Special FeatureDOCSIS 3.0 Cable Modem Routers, WiFi Cable Modem Routers
Antenna LocationGaming
Security ProtocolWPA2
Compatible DevicesPersonal Computer
Data Transfer Rate1.9 gigabits_per_second
LAN Port Bandwidth1000 Mbps
Frequency Band ClassDual-Band

Ready to buy?

Netgear Netgear C6900-100NAR Nighthawk Dual Band AC1900 Cable Modem Router , BLK (Renewed) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Netgear Netgear C6900-100NAR Nighthawk Dual Band AC1900 Cable Modem Router , BLK (Renewed)
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