Skip to content

Netgear CM700 vs Motorola MB7621 – Best Cable Modems

    NETGEAR Cable Modem CM700 – Compatible with all Cable Providers






    Motorola MB7621 Cable Modem | Pairs with Any WiFi Router

    Netgear CM700 vs Motorola MB7621

    Netgear CM700 vs Motorola MB7621: It’s challenging to decide between the Motorola MB7621 and Netgear CM700 as cable modems. Though both are wise decisions, which is the best? This Motorola MB7621 vs. Netgear CM700 comparison study is meant to assist you in determining which product is the better option for you.

    Netgear CM700 vs Motorola MB7621– Quick Comparison Summary

    • Compared to the Netgear CM700, the Motorola MB7621 is the most widely used cable modem on the market.

    • The dimensions of the Motorola MB7621 are 7.25 x 2.25 x 7.88 inches, whereas the dimensions of the Netgear CM700 are 6.6 x 5.2 x 1.7 inches.

    • The Motorola MB7621 is more expensive than the Netgear CM700.

    • The DOCSIS 3.0 channel bonding on the Netgear CM700 is 32×8, but the DOCSIS 3.0 channel bonding on the Motorola MB7621 is only 24×8.

    • The Netgear CM700 has a maximum download speed of 1.4 GB/s, whereas the Motorola MB7621 has a maximum download speed of 1 GB/s.

    • The Motorola MB7621 and Netgear CM700 share several amazing features, such as 1 Gigabit Ethernet Ports, Cable Internet Plan Speed Compatibility of Up to 800Mbps, Works With Any Wi-Fi Router, and many more.


    NETGEAR Cable Modem CM700 – Compatible with all Cable Providers

    Motorola MB7621 Cable Modem | Pairs with Any WiFi Router

    Netgear CM700

    Motorola MB7621





    Maximum Internet Download Speed

    Up to 1.4 Gbps

    Up to 1 Gbps


    1 Years

    2 Years

    Date First Available

     ‎October 30, 2016

     December 20, 2017

    Gigabit Ethernet Ports

      1 x 1G

      1 x 1G

    Cable Internet Plan Speed Compatibility

      Up to 800 Mbps

      Up to 800Mbps

    Cable Provider Compatibility

      All Major Cable Providers and Xfinity by Comcast, Spectrum, COX

      Comcast Xfinity, Cox, Spectrum, Suddenlink, Sparklight (CableOne)

    Modem Technology

      DOCSIS 3.0 and 32×8 Channel Bonding

      24×8 DOCSIS 3.0

    Compatible Devices


     Personal Computer

    Connectivity Technology

    One (1) WAN Coaxial Cable Connection


    Works With Any Wi-Fi Router

    Internet Service Provider

     Time Warner Cable, Xfinity, Charter

     Time Warner Cable, Xfinity, Charter Spectrum, Cox





    6.6 x 5.2 x 1.7 inches

    7.25 x 2.25 x 7.88 inches

    FAQS :

    Does this modem's four Ethernet ports all produce the same amount of bandwidth, or are certain ports more capable than others?

    My Motorola MB8600 cable modem, which I was given in May 2022, only has one ethernet port. I'm unhappy because having an extra port would be great for bypassing the separate router that sits between the MB8600 and the rest of the network while debugging with a directly connected laptop.

    Uses the infamous Intel Puma 6 chipset, which is now well-known?

    The MB8600 model and all other Motorola products use Broadcom chipsets, hence they are free of the Puma 6 chipset issue.

    I also require wifi; what do you suggest?

    Any WiFi router will function with the MB8600 modem. You should use at least an AC1900 router, given the speed of the MB8600, and depending on the other devices in your network, you might be able to benefit from a wireless speed even faster than AC1900. Simply connect the MB8600's Ethernet connector to the WiFi router of your choosing. Since you require a Gigabit WAN port (10/100/1000 Ethernet port) for the speeds that the MB8600 can give, the router should be up to date enough to have one. The fastest cable service that Comcast currently offers in the US is a 1 Gbps service. The MB8600 has bonded Ethernet connections that will enable it to deliver rates above 1 Gbps if Comcast or other cable Internet service providers start offering service speeds over 1 Gbps. Although there aren't any consumer-home/small office routers that perform Ethernet port bonding now, they are on the way. Although enterprise level routers (routers used in large businesses) have Ethernet port bonding, we are unable to currently suggest that type of equipment to consumers. They cost more and are more complicated than you need. By the time Comcast is prepared to start providing rates greater than 1Gbps, bonded Ethernet connections for customers will be available, and the MB8600 will be prepared to provide those speeds. To sum up: Use a wireless router with at least an AC1900 rating, and make sure it includes a Gigabit Ethernet WAN port.

    What kind of chipset does the mb7621 use? Broadcom, Intel, or another?

    The Broadcom modem chipset is used by the Motorola model MB7621 and all other modems.

    What happens if I'm not home and my cat vomit up and runs? Does it prevent it or do I find a huge mess when I go home?

    The J7 and J7+ employ computer vision, a form of artificial intelligence, to identify and ideally steer clear of animal collisions and other potential obstacles. Socks, USB cords, pet excrement, etc.

    What happens when the dog hair is long?

    The long hairs wrap around the ends of the brushes to form huge, thick rings that are concealed from cursory inspection, therefore you must remove and check/clean the brushes more frequently.

    What additional advantages or benefits are there to choosing the Roomba i7+ over the Roomba 980, except the fact that it can empty itself?

    Yes, I possess both. If you have a large amount of square footage, the i7+ learns your layout and then the app allows you create regions or rooms. The cleaning of the rooms may be scheduled for various times. Description: Netgear CM700 vs Motorola MB7621

    About this item – NETGEAR Cable Modem CM700 – Compatible with all Cable Providers incl. Xfinity, Spectrum, Cox | For Cable Plans up to 800Mbps | DOCSIS 3.0

    • Download and upload speeds of up to 1.4 gigabits per second WiFi connectivity requires a separate router. bonding of 32 channels by 8 Internet service provided via cable broadband: Please check the website of your cable Internet service provider for information on the compatibility of data speed tiers.
    • Any operating system that is capable of functioning over a TCP/IP network, including Microsoft Windows 7, 8, Vista, XP, 2000, Mac OS, and so on. Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or a higher version of Google Chrome 11.0 are all acceptable browser options.
    • Why Should You Invest in Your Own Modem? You might save as much as 168 dollars every year. The monthly rental costs, which can add up to a total of 168 dollars or more per year, are eliminated. No WiFi limitations You have complete autonomy to select and instal the WiFi router that is most suited to the requirements of your home.
    • A connection to high-speed cable Internet with download speeds of up to 1.4 gigabits per second can be established with the help of the NETGEAR CM700 High-Speed Cable Modem. It is DOCSIS 3.0, which has been validated by Camellabs and is 32 times faster than devices that use 2.0. The access and download speeds are significantly improved with a gigabit Ethernet port.

    About this item – Motorola MB7621 Cable Modem | Pairs with Any WiFi Router | Approved by Comcast Xfinity, Cox, and Spectrum | for Cable Plans Up to 900 Mbps | DOCSIS 3.0

    • Choosing cable Internet service is a wise decision. Eliminate monthly charges for renting a cable modem—this reduces the cost of renting an Xfinity cable modem by about $168 annually. 800+ Mbps: maximum actual Internet download speed; GigE Ethernet port: for a high-speed wired connection to any router, computer, or other Internet-capable device. Actual savings will vary depending on your service provider.
    • The quick-start tutorial makes setup quick and simple.
    • The 1 Gigabit Ethernet port on this cable modem can be used to connect to a WiFi router, computer, HDTV, game console, or streaming video device. excellent for use with mesh networks or whole-home WiFi systems like eero, Google WiFi, and Orbi. This cable modem does not support phone calls or an integrated wireless router. (A wireless router is included in the Motorola MG7315, MG7540, MG7550, and MG7700 devices.)
    • Requires Internet access through cable.
    • For actual cable Internet service speeds up to 650 Mbps, the model MB7621 is advised. This is rated by Wirecutter as “the best modem for most users.” A full-band capture digital tuner makes it possible to have faster and more dependable Internet.
    • approved by Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, BrightHouse, CableOne, SuddenLink, RCN, and other cable service providers, and is suitable for use with those services. Up to $156 in monthly rentals for cable modems are eliminated.Savings are displayed for Xfinity and differ depending on the cable company. With fibre optic, DSL, or satellite services from Verizon, AT&T, CenturyLink, Frontier, and other providers, no cable modem is compatible. (The MB7621 model lacks a phone jack.)
    • The attractive, compact form fits beautifully in any home or workplace while reducing the need for shelf space, enhancing cooling, and extending product life. Your investment is safeguarded by a 2-year warranty as well as tough lightning and power surge protection circuits.