Restored NETGEAR CM400 (8x4) Cable Modem, DOCSIS 3.0 | Certified for XFINITY by Comcast, Spectrum, Cox, Cablevision & more (CM400-100NAS)
Restored NETGEAR CM400 (8x4) Cable Modem, DOCSIS 3.0 | Certified for XFINITY by Comcast, Spectrum, Cox, Cablevision & more (CM400-100NAS)
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Restored NETGEAR CM400 (8x4) Cable Modem, DOCSIS 3.0 | Certified for XFINITY by Comcast, Spectrum, Cox, Cablevision & more (CM400-100NAS)

150 ratings
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Key item features

  • Internet Speed: Supports cable internet service plans up to 100 Mbps, with a maximum connection speed of 340 Mbps.
  • Modem Technology: Features DOCSIS 3.0 cable modem technology, offering download speeds up to 8 times faster than DOCSIS 2.0.
  • Connectivity Port: Equipped with one Gigabit Ethernet port for reliable wired connections.
  • Rental Fee Elimination: Helps eliminate monthly cable modem rental fees, potentially saving up to $120 annually.
  • Broad Compatibility: Certified for XFINITY by Comcast, Spectrum, Cox, Cablevision, and CableONE.
  • System Requirements: Compatible with Microsoft Windows (7, 8, Vista, XP, 2000), Mac OS, and other TCP/IP network operating systems.
  • Service Exclusions: Not compatible with Verizon, AT&T, CenturyLink, or bundled voice services.
  • WiFi Requirement: Requires a separate router for WiFi functionality, as it does not include integrated wireless capabilities.
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Specs

Modem type, Cable ModemCompatible service provider, Xfinity by Comcast, Spectrum, CoxMaximum download speed, 343 MbpsDocsis version, 3.0Maximum upload speed, 122 MbpsNumber of downstream channels, 8

About this item

Product details

The NETGEAR CM400 High Speed Cable Modem provides a connection to high-speed cable Internet, up to 340 Mbps. With DOCSIS 3.0 it is 8X faster than 2.0. It is CableLabs DOCSIS 3.0 Certified to work with cable Internet providers XFINITY from Comcast, Spectrum, Cox, Cablevision and more*.
Support Cable Internet Service plans up to 100 Mbps. Separate router required for WiFi.; DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port. DOCSIS 3.0 up to 8x faster download speeds than DOCSIS 2.0; ELIMINATE MONTHLY CABLE MODEM RENTAL FEES - Up to $120 per year. System Requirements:Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network; Not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with bundled voice services.; Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more.
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Specifications

Modem type

Cable Modem

Compatible service provider

Xfinity by Comcast, Spectrum, Cox

Maximum download speed

343 Mbps

Docsis version

3.0

Warranty

Warranty information

Standard Manufacturer Warranty

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Warnings

Customer ratings & reviews

4.5 out of 5 stars
stars
150 ratings129 reviews
Includes global ratings and reviews
How item rating is calculated

Reviews summary

Pros

  • : The modem sells at low price and functions as specified.
  • : The device installed quickly with clear step-by-step instructions.
  • : Consistently performs without issues.
  • : The modem reaches 236 mbps on 5ghz and sustains throughput.

Neutral

  • : Modem gives fast, steady service but has intermittent drops.
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Showing 1-3 of 129 reviews

Nov 27, 2020
Reviewer name: James
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A very easy product to use and setup

Helpful?1A0HCHA7Y41E40099972
Sep 6, 2020
Reviewer name: pugger80
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

works on any isp. best price for your money.

Helpful?1A0HCHA7Y41E40099972
Aug 13, 2020
Reviewer name: Patrick
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Fast Shipping

No problems! Works fine. Super fast shipping! Ordered on a Friday, got it Monday!!

Helpful?1A0HCHA7Y41E40099972
Current price is $39.00
Price when purchased online
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