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  • NETGEAR Cable Modem DOCSIS 3.0 (CM500) Compatible with Major Cable Providers Including Xfinity, Cox, for Plans Up to 400 Mbps
  • NETGEAR Cable Modem CM500Merchant Video

NETGEAR Cable Modem DOCSIS 3.0 (CM500) Compatible with Major Cable Providers Including Xfinity, Cox, for Plans Up to 400 Mbps


$48.38
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Style: up to 400Mbps
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About this item

  • Save monthly rental fees: Model CM500 replaces your cable modem, saving you up to $168/yr in equipment rental fees.
  • Speeds by carrier plans: Xfinity (up to 200Mbps), Cox (up to 150Mbps).
  • Works with any wifi router: Connect any WiFi router, separate unit, to this modem's Ethernet port to support all your wireless devices.
  • Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
  • Modem technology: Engineered with 16x4 channel bonding and DOCSIS 3.0.
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Product information

Technical Details

Collapse all
Brand ‎NETGEAR
Series ‎CM500
Item model number ‎CM500-1AZNAS
Item Weight ‎1.46 pounds
Product Dimensions ‎4.88 x 7.28 x 2.36 inches
Item Dimensions LxWxH ‎4.88 x 7.28 x 2.36 inches
Color ‎Black or White
Voltage ‎100240 Volts
Manufacturer ‎Netgear
ASIN ‎B06XH46MWW
Is Discontinued By Manufacturer ‎No
Date First Available ‎March 8, 2017

Additional Information

Customer Reviews
4.2 out of 5 stars
Best Sellers Rank

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here. [PDF ]

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NETGEAR Cable Modem DOCSIS 3.0 (CM500) Compatible with Major Cable Providers Including Xfinity, Cox, for Plans Up to 400 Mbps


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From the manufacturer

cm500 high speed cable modem
Why Buy Your Own Modem?

Why Buy Your Own Modem?

Save up to 168 Dollars/year

Eliminates monthly rental fees that can amount to 168 dollars or more per year.

No WiFi limits

You’re free to choose & connect the best router for your home’s WiFi needs.

f1

Built for Serious Speed

Supports cable internet plans with speeds up to 400Mbps ensuring fast, reliable internet speed for HD streaming and more.

wifi

Works with Any Wi-Fi Router

Plug the modem into the router that best meets your wireless needs and start streaming.

connect

Easy 5 Minute Setup

Step 1: Plug your coax cable into the modem.

Step 2: Activate by either

(a) connect an Ethernet cable to your computer and follow the on-screen setup, or

(b) call your cable provider to activate over the phone.

Step 3: Plug an ethernet cable between the modem and your Wi-Fi router.

CM500
CM700
CM1000
Customer Reviews
4.2 out of 5 stars 14,793
4.4 out of 5 stars 6,493
4.4 out of 5 stars 8,407
Price $48.38 no data $104.00
Cable Provider Compatibility All Major Cable Providers,Xfinity by Comcast, COX All Major Cable Providers,Xfinity by Comcast, COX All Major Cable Providers,Xfinity by Comcast, COX
Cable Internet Plan Speed Compatibility Up to 400Mbps Up to 800Mbps Up to 1Gbps
Works With Any Wi-Fi Router
Gigabit Ethernet Ports 1 x 1G 1 x 1G 1 x 1G
Telephone Voice Ports (Xfinity by Comcast Only) no data no data no data
Modem Technology DOCSIS 3.0 and 16x4 Channel Bonding DOCSIS 3.0 and 32x8 Channel Bonding DOCSIS 3.1, 32x8 Channel Bonding, OFDM 2x2

Product Description

The NETGEAR CM500 high speed Cable Modem provides a connection to high-speed cable Internet, up to 680Mbps. It is cable labs Certified and with DOCSIS 3. 0 is 16x faster than 2. 0 devices. It works with U. S. Cable Internet provider Comcast XFINITY & more. It is not compatible with cable bundled Voice services.

System Requirements

  • Cable Broadband Internet service
  • Please check your cable Internet service provider web site for data speed tier compatibility
  • Microsoft Windows 7, 8, 10, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network
  • Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher.
You cannot manually update your NETGEAR cable modem or modem router’s firmware. NETGEAR provides your ISP with the latest firmware and your ISP updates your firmware.

Safety and product resources

What's in the box

  • High Speed Cable Modem—DOCSIS 3.0 (CM500)
  • Ethernet cable
  • Quick install guide
  • Power adapter
  • Top Brand: NETGEAR

    Highly Rated
    100K+ customers rate items from this brand highly
    Trending
    100K+ orders for this brand in past 3 months
    Low Returns
    Customers usually keep items from this brand

    Customer reviews

    4.2 out of 5 stars
    14,793 global ratings

    Customers say

    Customers find the modem works reliably and is easy to set up, particularly with Comcast and Spectrum connections. They appreciate its speed improvements and consider it good value for money, with one customer noting it saves on internet bills. The modem's lifespan and connectivity receive mixed reviews - while some report it running solid for four months, others mention it failing after 10 months and experiencing dropped connections. Compatibility is also mixed, with some customers reporting it works well with Comcast/Xfinity while others find it incompatible with Xfinity/Comcast.
    AI Generated from the text of customer reviews

    Select to learn more

    975 customers mention works well, 761 positive, 214 negative
    Customers find that the modem works reliably, with many reporting it functions right out of the box and delivers excellent performance.
    Using it to replaces a failed Spectrum modem. Works great. Easy setup, just call your ISP with the MAC address and it’ll be up and running in no time.Read more
    I mean its just a modem. It is good, works well for what it is. I bought it from Amazon Warehouse so I paid less than half the price which was great!...Read more
    ...It is reliable, stylish, and compact. Bare in mind that it is also very lightweight so you should place it in an area that will not knock it over.Read more
    ...was that connectivity and DHCP on the LAN side, of course, stopped working and completely dropped all my connections in the household in the middle...Read more
    609 customers mention ease of setup, 570 positive, 39 negative
    Customers find the modem easy to set up, particularly with Comcast, and one customer mentions it allows for custom network settings.
    Easy to install and the signal was okay in my 1200 sq foot apartment. Overall very happy with it until yesterday it died. Looks like I got a lemon....Read more
    ...the I.S.P. is capable of providing. This modem was fast & easy to set up, provides both 5G & 24GHz bands plus options for both bands in "Guest...Read more
    Using it to replaces a failed Spectrum modem. Works great. Easy setup, just call your ISP with the MAC address and it’ll be up and running in no time.Read more
    Works great so far! Easy install! and its small! Smaller than I actually thought it would be which is great because it doesn't take up much space!...Read more
    486 customers mention quality, 431 positive, 55 negative
    Customers praise the modem's quality, describing it as impressive and excellent, with one customer noting it performs better than their old LinkSys device.
    I’m sure it’s a great product! I had to return it because I didn’t realize it was the modem alone. Super easy return process.Read more
    Great modem! My old modem and router were outdated and slow (25mbps download). I purchased this and the Eero and my speeds have gone up to 153mbps....Read more
    Still has some problems while playing game but good product. I need to upgrade someday I thought It’s enough for my computer but It is notRead more
    ...I am sure this is a good modem, but it doesn’t not have a router. If you are replacing a cable modem and router, this alone will not work....Read more
    326 customers mention value for money, 294 positive, 32 negative
    Customers find the modem offers good value for money, appreciating that it saves on internet bills and provides good quality for its price point.
    It was great price at $49.99, with the $10 off coupon. And so far, it works great. I also like the fact that it runs cool (i.e. temperature)....Read more
    I'm using with a good router I bought to Amazon. Good price too ThanksRead more
    ...Internet speeds are as advertised. Good value. I will definitely update if it fails anytime soon.Read more
    The CM500 works great and is a great value. I use this with Xfinity (Comcast) service in lieu of renting a modem from Comcast....Read more
    317 customers mention speed, 268 positive, 49 negative
    Customers are satisfied with the modem's speed, noting that it greatly increases WiFi performance.
    ...all the speed the I.S.P. is capable of providing. This modem was fast & easy to set up, provides both 5G & 24GHz bands plus options for both...Read more
    I bought this modem to avoid renting one from my ISP. It was quick and easy to install. So far, I’ve had a smooth experience with no issues....Read more
    Nice compact modem with great speed using 200 speed with sparklite are cableone service doesn't stick out like a sore thumb like the larger ones do...Read more
    ...very fast, and small. you can only stand it up, and the green lights are small. they are not too bright at all. good and bad.Read more
    362 customers mention compatibility, 232 positive, 130 negative
    Customers have mixed experiences with the modem's compatibility: while some report it works well with Comcast/Xfinity and Spectrum, others mention it doesn't work with Xfinity/Comcast and isn't compatible with their routers.
    It works with Comcast. It doesn’t bug out as people have commented.(must mean I set it up right)...Read more
    ...to have this set up and was told this particular model is not compatible with Xfinity. Extremely frustrating.Read more
    Easy to set up. Works great with comcast. No issues after first month of using it.Read more
    Works great with Xfinity, signed up with their 200MBp/s internet and my actual speeds are around 240. stays nice a cool.Read more
    281 customers mention internet connectivity, 94 positive, 187 negative
    Customers have mixed experiences with the modem's internet connectivity, with some reporting stable and reliable service while others experience connection issues from day one.
    ...Full streaming games, phones,and. TVs. It has only one port and no wifi. Who cares. $40 wifi router and running 3 TVs phones and computers....Read more
    Works with Optimum internet and speeds are the same as with the Optimum supplied modem but without the monthly fee.Read more
    ...This does NOT a router and does NOT have wifi like the xfinity equipment does. I have my own router and wifi APs so i dont need it....Read more
    Feels cheap, no Wi-FiRead more
    127 customers mention lifespan, 39 positive, 88 negative
    Customers have mixed experiences with the modem's lifespan, with some reporting it running solid for four months and good for at least two years, while others mention it failing after 7 to 10 months of use.
    ...and I working from home I had to reboot every 10 minutes and then it DIED! Fortunately I was able to get a new modem in an emergency....Read more
    Lasted less than 2 years. it stopped working and device warranty expires 90 days after purchase....Read more
    The modem itself gets 5 stars. Amazing performance and reliability, which is good because if you need their customer service you're out of luck....Read more
    Terrible Modem with weak signal. Broke after a few months.Read more
    Just connected to Xfinity
    5 out of 5 stars
    Just connected to Xfinity
    My xfinity app had been showing for a few months a message that my current modem was no longer supported but may still work. Lately my WiFi router started to drop connection constantly so I decided to swap out both. The cheapest modem “recommended” by Xfinity was 139. Too much for what I needed with my 200mbps plan. I then looked at ones that were just compatible and I decided on the CM500-100NAS even though some people have posted reviews recently saying it’s no longer supported. But the Xfinity list of recommended and compatible modems that was last updated Nov 22, 2023 (they state that the list is updated quarterly) lists the CM500-100NAS as still being compatible for my service. I did not follow the included installation instructions given by Netgear. Instead I got on the Xfinity app with my phone using cellular data, and selected “account” and selected “activate xFi Gateway or Modem” under “Devices”. It stepped me through the installation process. Same process as when I installed my Motorola modem in 2020. It’s only been a few hours but no issues. Will update if anything goes wrong or I find Xfinity decides to not support this modem any longer in the next year.
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    Top reviews from the United States

    • Reviewed in the United States on December 7, 2017
      Style: up to 400MbpsVerified Purchase
      So I've had this modem for a few weeks. I used to have a Motorola Surfboard 6141 I believe (going off memory). That modem at times would randomly drop speeds down to 1mb/s maximum for no reason, then throttle back up. I tried to research this and found out it might have been related to the Time Warner Maxx internet package I have (I'm grandfathered into a package that currently doesn't exist). No idea how or why that would matter but it seems to be the reason why my old Surfboard was having problems.

      So a deal hit and I dropped cash for this modem in hopes I could solve this problem fairly cheaply and so far its working. I haven't noticed any lag, no strange behavior like dropping to 1mb/s speeds, its been consistent and constant fast speeds, even above the stated speeds I should receive. The unit is well ventilated so the concern of heating up is not an issue. It's barely warm to the touch. I think as others have stated, if you put this in a confined space, for example an entertainment center with a glass door, then it'll heat up more than likely because there's no internal fan. But if you provide adequate air circulation then it'll function perfectly from my point of view.

      Also I wasn't able to successfully hook up the unit and remotely update to Time Warner that I am switching modems (Mac address) so I had to call them. The tech was able to get me going and took about 10 mins.

      All in all its so far a great intermediate modem.
      6 people found this helpful
      Report
    • Reviewed in the United States on November 25, 2024
      Style: up to 400MbpsVerified Purchase
      The modem arrived early, it worked perfectly after a call to COX, telling me to contact NETGEAR, because it was a modem issue is why it would not connect to my desktop or router. Netgear said it was my router, wrong. The next day a COX tech spent 4 hours at my home. He left telling me that I needed a new router and the internet to my desktop worked on some sites, did not work on other sites at all. For any COX internet customers, once you connect this modem, or any other brand, you HAVE to call the COX Sales department to have it activated, I repeat, call Sales. Also, I use Windows 10, you absolutely have to be logged in as the administrator, That is what I did, my desktop connected to the internet and I then connected the modem to my router and my desktop from the router and the modem has worked perfectly since then. I would buy from the Seller again, without a 2nd thought, I couldn't be any happier with their service. The modem has been an excellent buy and I am happy that I purchased it.
      3 people found this helpful
      Report
    • Reviewed in the United States on March 20, 2024
      Style: up to 400MbpsVerified Purchase
      A bit disappointing that it didn't come with a full manual (you have to download it), but otherwise it's a fine modem; easy to connect and set up. No notable performance improvements over the modem that Spectrum supplied me, but this one allows me to actually communicate with the modem, view incoming signal status, or change settings, which was why I ordered it. With the Spectrum modem you're pretty much blind: you can't view the status on your computer, and there are no meaningful status lights on the front of the modem. If you're having connection issues, it's nice to be able to tell your cable provider what your signal status is when you call for tech support.
      8 people found this helpful
      Report
    • Reviewed in the United States on July 19, 2020
      Style: up to 400MbpsVerified Purchase
      I got this for Xfinity service, because I hate paying them to rent their device. After 10 months, this thing will have paid for itself.

      I have a pi hole (DNS level ad-blocking), so it's nice to have a device where you can point to a DNS server of your choosing. Solid device, with no real issues.

      Pros:
      - Pays for itself after less than a year.
      - Prevents you from being controlled by Xfinity.
      - Allows you to not have other folks connecting to your device if you don't want them to.
      - Fast enough for basic packages.
      - Stable/reliable.
      - Allows for custom network settings (including, but not limited to DNS).

      Cons:
      - Uh.... I can't think of any right now. It's literally done everything I've needed it to do so far. If I REALLY have to pick something... I'd say that it gets a bit warm for my taste. They could definitely have designed it with better air flow in mind. Not that it really matters, because even when it's hot it still works better than the modem Xfinity provided.

      Other thoughts:
      - Don't let them bully you into paying for their equipment rental, or scare you into thinking this device is somehow going to wreck your life. It's literally their job to try to get you to pay more money.
      7 people found this helpful
      Report

    Top reviews from other countries

    • Chrism81
      5.0 out of 5 stars Most important is I received exactly what I ordered
      Reviewed in Australia on September 14, 2021
      Style: up to 400MbpsVerified Purchase
      I bought this product to pair up with a new Router as I'm upgrading so that I can start connecting up smart lights security cameras music etc so far working perfectly
    • stephenF
      2.0 out of 5 stars Where is my cable/internet line?
      Reviewed in Australia on March 24, 2022
      Style: up to 400MbpsVerified Purchase
      Where is my cable/internet line? Also kind difficult to set up, anyone want buy this modem really need to add more budget update your modem rather than this. Lessons got