Netgear Gigabit Cable Modem (32x8) DOCSIS 3.1 | for XFINITY by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)
Condition: Refurbished - Excellent
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- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
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90-day returns
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FREE 90-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 3 left in stock, order soon!
Arrives
Monday, Jun 15
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Features
- Compatible with all major cable internet providers with internet speed up to 1Gbps. Currently certified with Spectrum and Cox (up to 1Gbps), Xfinity (up to 800Mbps). Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service
- Model CM1000 replaces your cable modem saving you up to 168/year in equipment rental fees
- Connect any WiFi router to this modem's Ethernet port to support all your wireless devices
- 1 Gigabit Ethernet port connects to your computer or separate WiFi router
- Made for use in the US only
Description
The NETGEAR CM1000 Ultra-High Speed Cable Modem provides a connection to high- speed cable Internet with speeds up to 1 Gbps. It is the industry’s first DOCSIS 3.1 CableLabs Certified cable modem, 10X faster than DOCSIS 3.0. Working with DOCSIS 3.0 and DOCSIS 3.1 cable Internet service providers, it is the ultra-high speed cable modem ready for today’s service plans and future upgrades. Enjoy ultra HD video streaming over IP with 2x2 OFDM or 32x8 channel bonding giving you the fastest download speeds—even during peak hours. Save up to $156 a year by eliminating Internet service provider rental fees. Ideal for fastest Internet cable services like Comcast XFINITY Gigabit, Extreme and Performance data plans.
Brand: NETGEAR
Internet service provider: Xfinity,Cox
Connectivity Technology: Ethernet
Compatible Devices: Router
Product Dimensions: 7.24"L x 4.53"W x 10.24"H
Connectivity Technology: Ethernet
Compatible Devices: Router
Number of Ports: 1
Maximum Downstream Data Transfer Rate: 1 Gigabits Per Second
Maximum Upstream Data Transfer Rate: 1 Gigabits Per Second
Data Transfer Rate: 1 Gigabits Per Second
Number of Ethernet Ports: 1
Item Dimensions L x W x H: 7.24"L x 4.53"W x 10.24"H
Color: Black
Brand: NETGEAR
Internet Service Provider: Xfinity,Cox
Modem Type: Cable
UPC: 090952178490
Manufacturer: NETGEAR
Mfr Part Number: Morza/va179
Model Number: CM1000-100NAS
Unit Count: 1.0 Count
Warranty Description: 90 days limited warranty
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 15
Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Quality of item was as if brand new. I was a little concerned buying a refurb considering the range of DOCSIS 3.1 (as in it will likely last years as a standard for a home cable modem) and expected product longevity (you want to have the modem last years as well without concern or need for further replacement) but I have had no issues at all and the modem works spectacularly. I am very happy with the price and Prime ship time as I needed a modem fast when my previous modem failed. I am a remote worker and reliability of a data connection is critical. My modem and high end router of the same brand now work together perfectly. Setup is as easy as calling your cable provider, and you save the cost of any cable fee for leasing equipment.
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Reviewed in the United States on April 17, 2024 by Justin W.
Works great no problem and was packed really well. It came in perfect condition for a refurbished item. Recommend this seller. The only thing negative is it took a lot longer to get than I wanted but it was still in the estimated time frame. It was roughly 3 weeks after ordering to delivery. But it was work it overall.
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Reviewed in the United States on January 25, 2026 by trincy
I ordered this back on October 4, 2023, its now September 1, 2024 so its been almost a year. I was a bit skeptical about how well this would do given some of the negative reviews and the fact that I bought it as a 'renewed' item. I replaced my old Arris Surfboard Docsis 3.0 modem and let me tell you this thing doubled my internet speeds. Its been a workhorse since then. The setup is super easy and it kinda just sets itself up for you. I've had to power cycle this thing several times whenever I see super slow speeds or Netflix isn't loading. Its the whole turn it off and back on again and that's the only thing I've ever had to do to fix any issues with speed. The last time I had to reboot it was probably over a month ago. I can't recommend this enough to anyone wanting to get a discounted, high quality item!
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Reviewed in the United States on September 1, 2024 by Thomas
UPDATE after 8 Months ---------------------------- I've used this modem for about 8 months so far and for the most part it's been okay. My only issue is that it drops connection about once a month and will stay that way until I perform a reboot. This started happening a few months ago. To reconnect, I unplug the modem for a minute, then plug it back in. After that, it stays connected for about another month. If this becomes more frequent, I will consider switching to another modem. ORIGINAL Post ------------------ I recently moved and found out, much to my dismay, that Comcast is my only hi-speed internet option. I refuse to pay them any more that I have to, so buying my own modem was a must. This modem was reasonably priced compared to other brands and met the specs I needed. Installation was easy enough, but came with very little documentation. I am a full time IT engineer, but I think most people should be able to set this up without a problem. Once connected, I tested the speed and it performed well. I have an 800 mhz plan and got speeds exceeding that. My only wish is that it had more than a single ethernet port on the back. I have an Eero mesh router which has to use that port, so I have to plug in my ethernet switch into the Eero mesh instead of directly into the modem. This makes connecting to the modem's setup screens a bit of a pain. I am very happy with this purchase though.
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Reviewed in the United States on July 28, 2021 by Butchboy
I tried 2 of these. First one I could tell wasn't working correctly, it powered on but it didn't go through the back-and-forth with comcast to connect. I couldn't even see the device by it's address on my network. Eventually I got through to Comcast and they pushed a connect signal - nothing. Did a factory reset and this time they got a signal to it where it gave the "activation" instructions but they still couldn't get it to come online. 2nd one - definitely different. Did the back-and-forth and all that, but still couldn't see it on the network. Factory reset and there it was, and I got the Comcast activation message, too. It was gonna' work....... and after over a half-hour of multiple activation signals, alas, it's still shows offline at Comcast. There customer support - it's there a couple hours a day Eastern time - if you're anywhere else try around 11 - noon your time. Amazon - time to get a new refurbisher - just making sure it's clean and has parts and powers on isn't enough, you know darn well I'm going to Best Buy this time. Oh, and just in case you're wondering if I actually can't properly plug in and connect a cable - put the old modem back in and 5 mins later I'm writing this review. DO NOT use a device from Kanga. Not just ZERO stars, negative stars. TERRIBLE.
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Reviewed in the United States on July 28, 2023 by Wormer
Cable has been acting up for a couple of weeks and I noticed the modem's light were flashing differently and intermittently. Ordered the modem and it came the SAME DAY!!! I just used the same power cord and Ethernet cable for the new modem. It took all of one minute. Turned it on and waited for all the 4 lights to turn green and the bottom one to turn amber. It took about 20 minutes.It did keep on resetting, but that was expected. Called Xfinity with the new MAC#. They reset everything. I then reset the router and I was back in business. Total time from beginning to end (including waiting on the phone with Xfinity) about an hour and a half. Now I have a good connection and the speed of the internet seems super fast now. The old modem was installed in 2017. I am extremely happy with purchase.
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Reviewed in the United States on March 10, 2024 by babnab1
Amazon Renewed product. Did a factory reset on it and then went through the activation process with Xfinity via their mobile app. Activation went flawlessly, and the unit is functioning within design parameters. This is a good value product, depending on longevity. --Don't forget to log into the modem and change the default password. I found to do this you have to turn the modem off, unhook the coaxial cable (but leave the data cable from the router connected)), and then turn the modem back on. After it completed its start-up I was able to connect to 192.168.100.1 and access the modem log-in page via a browser. Input the default user and password that's on the bottom of the modem. It will prompt you to change the default.
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Reviewed in the United States on July 1, 2025 by Kindle Customer
I waited a week before writing a review, just to make sure all was good with the modem. I was a little wary ordering a refurbished version, especially after seeing some of the reviews here. But, with Amazon’s return policy, I figured it was worth a try since the price was almost half off of new. The modem arrived in a plain brown box, was well packed inside, and after looking over the modem, I couldn’t tell this wasn’t a new modem, other than the round sticker on the back stating it was a netgear official refurbished product. I got this modem to replace an old Arris 3.0 modem that limited my speed to roughly 300mbs down. It was a freebie from a family member to get me by, and it worked ok, but I am now getting the 1G package from Mediacom. I hooked up the Netgear, following the instructions for installation included in the package. After a quick 10 minute call (if that) to Mediacom, I was up and running, at full 1G speeds. Over the past week the modem has been rock solid, no resets needed, haven’t noticed any slowdowns or dropped connection. I really can’t find anything to complain about, other than I wish I could mount it horizontally, since it’s larger than the Arris modem it replaced, and doesn’t fit on the shelf where I had that modem. Even out in the open, it certainly looks much better than the white Arris modem I was using. Lights aren’t obnoxiously bright and overall look is pretty nice really.
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Reviewed in the United States on August 5, 2023 by edgeofinsanity