RAM | 64 MB |
---|---|
Wireless Type | 802.11bgn |
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- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
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- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Malfunctions covered after the manufacturer's warranty. Power surges covered from day one. Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. We will send you an e-gift card for the purchase price of your covered product. In some instances, we will replace or repair it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- Buy a lot of stuff on Amazon? Tons of items eligible for coverage, from the latest tech like laptops, game consoles, TVs, phones, and cameras to major appliances, sporting goods, tools, toys, mattresses, personal care, furniture, and more.
- Accidents happen. That’s why for your portable products we cover accidental damage from handling such as drops, spills and cracked screens. We also cover electrical and mechanical malfunctions,power surges, and wear and tear.
- Past and future purchases covered. 30 days after you are enrolled,all eligible past purchases (up to 1 year prior to enrollment) and future eligible purchases made on Amazon will be covered by your plan as long as you are enrolled.
- Fast, easy claims. Frustration-free claims, with most filed in minutes. We will fix it, replace it, or reimburse you with an Amazon e-gift card for the purchase price of your product (excluding tax).File at Asurion.com/amazon.
- No hidden fees.For just $16.99 a month + tax you’re covered for up to $5,000 in claims per 12-month period. *THIS PROGRAM IS MONTH-TO-MONTH AND WILL CONTINUE UNTIL CANCELED* Coverage for all products ends 30 days after the plan is canceled. Cancel any time.
Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.
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$65.99$65.99 $3.59 per oz ($3.59$3.59 / oz)
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1.27 mi | ASHBURN 20147
NETGEAR Cable Modem CM400 Compatible with Cable Providers Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 100 Mbps | DOCSIS3.0, Black (CM400-100NAS)
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Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
Brand | NETGEAR |
Internet service provider | spectrum, optimum, cox, xfinity |
Connectivity Technology | Wireless |
Total Ethernet Ports | 1 |
Color | Black |
About this item
- ELIMINATE MONTHLY CABLE MODEM RENTAL FEES - Up to $156 per year
- DOCSIS 3. 0 Cable Modem with 1 Gigabit Ethernet port. One (1) Gigabit Ethernet port with auto-sensing technology
- Up to 340Mbps download and upload speed. Separate router required for WiFi. 8x4 channel bonding.
- DOCSIS 3. 0 unleashes 8x faster download speeds than DOCSIS 2. 0
- Ideal for streaming HD videos, faster downloads, and high-speed online gaming
- Required for the fastest cable Internet speed tiers
- Compatible with Xfinity from Comcast, Spectrum, Cox, & more. Not compatible with bundled voice services.
- Memory storage capacity: 64.0 MB
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This Item ![]() NETGEAR Cable Modem CM400 Compatible with Cable Providers Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 100 Mbps | DOCSIS3.0, Black (CM400-100NAS) | Recommendations | dummy | dummy | dummy | dummy | |
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | $65.99$65.99 | $99.99$99.99 | -46% $34.95$34.95 New Price: $64.99 | -20% $183.99$183.99 List: $229.99 | $199.99$199.99 | -11% $196.45$196.45 List: $219.99 |
Delivery | Get it as soon as Wednesday, Jul 31 | Get it as soon as Tuesday, Jul 30 | Get it Jul 31 - Aug 2 | Get it as soon as Tuesday, Jul 30 | — | — |
Customer Ratings | ||||||
Easy to install | 4.0 | 4.4 | 4.2 | 4.3 | 4.4 | 4.2 |
WiFi signal | 3.5 | 3.9 | 3.6 | 3.8 | 4.1 | 3.7 |
Tech Support | 3.1 | 3.1 | 2.9 | 3.4 | 3.6 | 3.0 |
Value for money | 2.0 | 4.3 | 4.0 | 4.0 | — | 3.8 |
Sold By | Flipsters | Hitron Americas | Search Buy Repeat | Amazon.com | SupplierX | Fba Sales |
connectivity tech | Wireless | Ethernet | Ethernet | Ethernet | Ethernet, Wi-Fi | Ethernet |
ethernet ports | 1 | 2 | 1 | 1 | 2 | 2 |
number of ports | 3 | 2 | 1 | 1 | — | 2 |
data transfer rate | 340 megabits per second | 1 gigabits per second | — | 1000 megabits per second | 300 megabits per second | 2500 megabits per second |
max downstream rate | 343 megabits per second | 1000 megabits per second | 960 megabits per second | 1029 megabits per second | 1 gigabits per second | 2500 megabits per second |
max upstream rate | 123 megabits per second | 350 megabits per second | 960 megabits per second | 246 megabits per second | — | 2.5 gigabits per second |
modem type | cable | cable | cable | cable | dsl | cable |
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CM1000 Ultra High-Speed DOCSIS 3.1 Gigabit Cable Modem | NETGEAR
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Product information
Technical Details
Brand | NETGEAR |
---|---|
Item model number | CM400-100NAS |
Operating System | Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network |
Item Weight | 1.08 pounds |
Product Dimensions | 8.55 x 7.17 x 2.05 inches |
Item Dimensions LxWxH | 8.55 x 7.17 x 2.05 inches |
Color | Black |
Flash Memory Size | 8 |
Power Source | AC |
Manufacturer | Netgear |
ASIN | B00MN2EUEA |
Is Discontinued By Manufacturer | No |
Date First Available | August 11, 2014 |
Additional Information
Customer Reviews |
4.1 out of 5 stars |
---|---|
Best Sellers Rank | #38,098 in Computers & Accessories (See Top 100 in Computers & Accessories) #155 in Computer Networking Modems |
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NETGEAR Cable Modem CM400 Compatible with Cable Providers Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 100 Mbps | DOCSIS3.0, Black (CM400-100NAS)
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Product Description
The NETGEAR CM400 High Speed Cable Modem provides a connection to high-speed cable Internet, up to 340Mbps. It is Cable Labs certified and with DOCSIS 3. 0 is 8X faster than 2. 0. It is compatible with U. S. cable Internet providers like Cablevision, Cox, Time Warner Cable, XFINITY & more.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, ease of setup, value, and signal strength of the modem. For example, they mention it works extremely well, is easy to connect to a separate wireless router, and is great for the money. That said, some complain about connectivity and heating. Opinions are mixed on speed and quality.
AI-generated from the text of customer reviews
Customers like the performance of the modem. They say it works extremely well, has done the job admirably, and plays nicely with their router. Some mention that the initial performance was pretty good, showing a solid 160mbps down. They also say that it works very well for connection to Comcast Xfinity internet service and that it gets full signal no issue.
"Greate ,Cheap , easy to set up , and works perfect !..." Read more
"this modem is really my new favorite. works extremely well, no lag, no internet connection problems like my previous arris which was not good...." Read more
"...It loses connection and will sit idly for a few minutes before it decides to pickup again, or until I manually reset it...." Read more
"...Works great, set it up its pretty easy , just call your cable company to register the ESN and that's it ...." Read more
Customers find the setup of the modem to be easy. They mention that the instructions are clear, and the setup process is simple. Some say that the mode is small, making it not an eyesore. Overall, most are satisfied with the ease of setup.
"...It was good deal i couldn't pass up ! It connected cox internet service perfectly - Has normal modem issues that you normally expect once in a blue..." Read more
"...was really easy to set up and had all the information on how to install to my charter account...." Read more
"...Works great, set it up its pretty easy , just call your cable company to register the ESN and that's it ...." Read more
"...Nice Design, Matches the rest of my Netgear equipment.Easy to setup.Clear instruction manual.Lowered my monthly internet bill...." Read more
Customers like the value of the modem. They say it works great, is relatively cheap, and saves them serious cash. Some mention that it reduces their monthly internet bill.
"Greate ,Cheap , easy to set up , and works perfect !..." Read more
"...Easy to setup.Clear instruction manual.Lowered my monthly internet bill...." Read more
"Bought a second one of for my parents. It's cheap and it does the job...." Read more
"...searching I found my self purchasing this product because of it's affordable price and the fact that it has a wireless router built in...." Read more
Customers like the signal strength of the modem. They mention it's fantastic, easy to install, operate, and understand. They say it works great for 25 Gig internet from Comcast, works great with xfinity 100Mbs service, and is perfect for cable downloading to give wireless access throughout the house.
"Greate ,Cheap , easy to set up , and works perfect !Perfect modem if you use Internet on your ps4 or phone and want a stonger connection..." Read more
"...based on condition my modem came in and the fact that it works for Comcast Xfinity internet." Read more
"...but only one computer could be on line at a time, and then it kept dropping the signal...." Read more
"In terms of internet quality the device is great...." Read more
Customers are mixed about the speed of the modem. Some mention that it's great and allows them to stream Netflix and play online, while others say that it is too slow and unable to provide the high speed internet that they are paying for.
"My Unite lasted me for about 3 years before it started slowing down my internet speed. The main reason was heating...." Read more
"this modem is really my new favorite. works extremely well, no lag, no internet connection problems like my previous arris which was not good...." Read more
"...chipset has a known issue for causing "buffer bloat", which can result in high latency...." Read more
"...It started out fine, easy to install and ready to go in minutes. Over time however it has started dropping internet connections...." Read more
Customers are mixed about the quality of the modem. Some mention it's a solid product with a decent life cycle, very reliable, and excellent quality. However, others say that it only lasted one week, frequently crashes, and failed all expectations.
"...It usually works ok, but at night it seems to struggle." Read more
"...that lasted one month beyond it's warranty date... This one only lasted one month, so I'm replacing it with another of the same...." Read more
"...60;(' The CM400 is a very reliable and sound unit. Bought April 2017, over a year of quality service." Read more
"...This did NOT last long. I was looking at the positive reviews and fell for them as well...." Read more
Customers are dissatisfied with the connectivity of the modem. They mention that it has a tendency to drop their internet connection, and that it frequently refuses to connect to the web. It also constantly disconnects all devices from WiFi and that the internet would go off and on.
"...I baught this not realizing it didnt come with built in wifi connection, i still needed to hook up to a wifi modem, it still was perfect since I had..." Read more
"...Over time however it has started dropping internet connections. It loses connection and will sit idly for a few minutes before it decides to pickup..." Read more
"...out of the box set up easy but within 24 hours started constant cycling to find connection...." Read more
"...Our wifi signal was kind of weak but we were still able to use it." Read more
Customers are dissatisfied with the heating of the modem. They mention that it runs rather hot at times, gets much warmer than any internet device should, and feels very warm constantly. Some customers also report that the moded has a defective part and was frying itself.
"...The main reason was heating. These modems gets very warm and needs to run 24/7 there should be cooling units to make them last." Read more
"...EDIT: Strongly suspect this one is prone to overheating. It’s very small and not particularly well ventilated, and felt very warm constantly...." Read more
"...However, it does run rather hot at times, and down here in Texas that can be rather detrimental to the operation of the device...." Read more
"...Haven't checked into this too much, but it seems like this Modem generates less heat than my old one did as well. A great value!" Read more
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Perfect modem if you use Internet on your ps4 or phone and want a stonger connection for multiple devices . Has 3 total wires in the box it comes in. I baught this not realizing it didnt come with built in wifi connection, i still needed to hook up to a wifi modem, it still was perfect since I had a wifi mode already. It was good deal i couldn't pass up ! It connected cox internet service perfectly - Has normal modem issues that you normally expect once in a blue moon , always a common thing when dealing with technology , you can restart the box and the connection will be fixed. 2 months now and still going strong .
Update: still runs perfectly one year later !!
Hope this helped anyone !
Pros:
Nice Design, Matches the rest of my Netgear equipment.
Easy to setup.
Clear instruction manual.
Lowered my monthly internet bill.
Can login to the router for configuration, logs, and statuses (Could not with my TW Modem).
Cons:
None so far.
I expected to find a link in the GUI (this is the interface where you access the controls/settings for the device through an internet browser) which would say something like "Check for updates". But, no such link exists. So, I thought perhaps I could simply download the required files from the support page much like you might for driver.... Nope!
After doing a little digging on NETGEAR's site I found that in order to update the firmware I had to reach out to the ISP (Internet Service Provider), who in my case is Spectrum (formerly Time Warner Cable). They were very quick to tell me that they can't update the firmware because it's not their device - I purchased it myself, I'm not leasing it from them. So, I reached out to NETGEAR who told me that they can't help me. They reiterated what I previously read on their site that it must be done by the ISP. I tried the Spectrum again hoping the last person that I spoke with there maybe just didn't know what they were doing... and I was told the same thing again. So I called NETGEAR back to find out what can be done. They insisted that they cannot support their own equipment and I needed to get support from the ISP. I started getting seriously frustrated at this point. I asked the rep at NETGEAR "how could you make a product and then not only take away the users ability to maintain their own equipment especially when it comes to firmware updates which are often critical to network security, but you the manufacturer wont support it? How can you rely solely on third-party ISP's all over the globe to maintain your equipment for you?" Instead of responding, he hung up on me. Just like that. I never swore and I never raised my voice. I guess he just didn't have an answer and didn't value me as a customer.
Long story short - I'll never buy another NETGEAR product again! And I don't recommend you do either!
When it works, it works great. When it drops connection a few times in an hour, it drives me nuts. It usually works ok, but at night it seems to struggle.
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The customer support was kind and responsive. They refunded me in no time!