Netgear CM1000 Review – Best High Speed Cable Modem

Talking of high-end, ultra high-speed cable modem, you won’t miss mentioning the Netgear cm1000.

It is a spectacular design by the Netgear Company with greater performance in connecting your devices to broadband Internet.

It, however, comes with much more added advantage. Unlike other conventional cable modems, it is highly supportive of the new technology of DOCSIS 3.1.

The technology offers 32 downstream as well as eight upstream channels meant for the DOCSIS 3.0 linking.

Furthermore, it provides 2 OFDMA downstream and upstream channels best for the DOCSIS 3.1 linking, thus allowing users to enjoy the high-speed connectivity from their ISPs.

The digital world of today, almost everything runs between the PCs and the internet connection. The advancement in technology has even made it more comfortable.

We no longer need to sit for hours waiting for a single page or image to load to access our cloud-stored information. For these reasons, therefore we have the this mode, to help us connect to a high-speed internet connection.

This review discusses so much on the exceptional performance of this model, in terms of operational efficiency and its exterior design.

 Netgear CM1000 Design: 

Once again, the Netgear company invested lots of expertise and professionalism in coming up with the design of this product.

You will recognize it with its sharp straight edges, a shiny aluminum front having the indicator panel consisting of green LED’s well hidden in rightful positions.

Its rear section is even much simpler in design. It composes of LAN port connecting it to the router. A coaxial port comes right below it, enabling its connection to the grid.

Lastly are the reset buttons, power buttons as well as a power jack. Turning the power on, you will witness how more professional it looks and works.

 Networking Technology 

Netgear CM1000 uses the latest DOCSIS – a communication protocol that most modems use between themselves. They are as a set of rules.

The newest version is the 3.1 upgraded from the initial 3.0. Of cause, this came with much more advantages.

First, it about the bandwidth and as expected, it had to improve. The 3.1 DOCSIS version up to 10Gbits/s speeds is very much possible.

Why? This modem can support QAM of up to 4096. In this case, QAM is like words in a language. The previous 3.0 version only had a much lesser number.

Second improvement concern channel spacing. The current 3.1 DOCSIS version uses channels of between 20 to 50 kHz wide which is an extension from the 8 MHz of the 3.0 DOCSIS.

Meaning, the ISP can cram more bandwidth into one old cable that has been in initial use.

 Signal strength 

This device supports both low and high bandwidth.

However, it is best in densely populated areas like in the urban where services like the 1Gbps Xfinity are available.

It works like a particular car which uses different and several routes (not accessible to others) to reach a specific destination.

Of cause it will be much faster than those restricted to one rout, which is heavy trafficked as well.


  • Item Weight: 13.4 ounces
  • Brand: Netgear
  • Batteries: 1 Lithium ion batteries
  • Product Dimensions: 5.4 x 5.9 x 8.8 inches
  • Item Dimensions: L x W x H 5.4 x 5.9 x 8.8 inches
  •  Key Features 

    Great support: The Netgear cm100 is highly supportive of all the tiers of the cable internet ranging up to a Gigabit service. 

    However, it requires a separate router for the Wi-Fi.

    It operates on DOCSIS 3.1which is up to 10X much faster than the initial DOCSIS 3.0 in terms of download speeds.

    DOCSIS 3.1 is Orthogonal Frequency-Division Multiplexing 2×2+ DOCSIS 3.0 32×8 channel connection. Eight upstream channels and 32 downstream for version 3.0 of DOCSIS connection.

    Buy once item: The item requires not any monthly premium charges once you buy it from the shop that is it.

    Incompatible with: CenturyLink, AT&T, or Verizon. It is as well incompatible with the services of bundled voice. Compatible with Mediacom Cable, Xfinity from Comcast, Cox among many others.

    System Requirements: Vista, Microsoft Windows 7, 8, 10, XP, Mac OS, 2000, or other OS running either a TCP or IP network.

    Can support the 5.0 version of Safari 1.4, Microsoft Internet Explorer, Firefox 2.0, or Google Chrome 11.0 browsers are going up.


  • High compatibility
  • User-friendly
  • Convenient
  • Reliable
  • Quality make
  •  Cons 

  • Do not allow manual firmware upgrade
  • Unreliable
  •  Frequently Asked Questions and Answers

    Netgear CM1000 review Question:

    From whose chip does it come from?

    It comes from Broadcom

    Having a LAN port of only 1Gb bandwidth is that too low, could it be at least 6 Gb?

    Theoretically, the Docsis 3.1version supports the 6gbps however, note that this modem is more useful for persons utilizing 300mbps and above of internet connection.

    Despite that, it still works perfectly for those with slower internets, for instance, the Xfinity.

    Any information concerning its power consumption, please?

    The device does not consume a lot of power. It can work with a listing of 12V, 2.5A. In essence, a maximum of 30W.

    Which is its most compatible router?

    Any of the Netgear Nighthawk version series

    Where can I buy the cm1000 modem?

    You can buy the item at your closest retail shop or place an order online. Note, however, that online purchase might need you to confirm the specifics before sending funds.

     Buying Advice 

    For a first-timer, it might be confusing on what exact type of modem you need.

    However, having read the specification of this model, you can differentiate it with the rest when buying.

    Always ensure the purchase is from a trusted retailer.

    Apart from its features and specifications you might deeply consider, try as well to look for shops with lower prices.

    Not all shops have a similar retail price if you need to save some amount.


    Speeding up your internet connection needs a more reliable, highly efficient, and a high performer device like this modem.

    It bears professional structure and firmware design which altogether execute ultimate service.

    Buying an original design of it is vital. A fake product might only bring your frustrations.

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