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Motorola Mb7621 Cable Modem Comparison - July 2025

1
Best Choice
9.7Exceptional
2
9.5Excellent
3
Best Value
9.3Excellent
4
9.2Excellent
5
9.1Excellent
6
8.8Very Good
7
8.6Very Good
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Model

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
Model
ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels
Model
ARRIS (G34) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds
Model
Motorola 24x8 Cable Modem, Model MB7621, DOCSIS 3.0. Approved by Comcast Xfinity, Cox, Charter Spectrum, Time Warner Cable, and More. Downloads 1,000 Mbps Maximum (No WiFi) (Renewed)
Model
NETGEAR Nighthawk Cable Modem CM1200 - Compatible with all Cable Providers including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 2 Gigabits | 4 x 1G Ethernet ports | DOCSIS 3.1, Black
Model
ARRIS (S34) - Cable Modem - Fast DOCSIS 3.1 Multi-Gigabit Cable Modem, for Comcast Xfinity, Cox, Spectrum & More, 2.5 Gbps Max Internet Speeds, Next-Generation Upload Optimized, 2 Year Warranty
Model
ARRIS (SB6190) - Cable Modem - DOCSIS 3.0 32x8 Gigabit Modem, For Comcast Xfinity, Cox, check with ISP for compatibility [Not for Spectrum] 1 Gbps Port, 800 Mbps Max Speed, 2 Year Warranty - White

Brand

motorola
Brand
ARRIS
Brand
ARRIS
Brand
Motorola
Brand
NETGEAR
Brand
ARRIS
Brand
ARRIS

Reviews

86,634 reviews
Reviews
55,350 reviews
Reviews
33,375 reviews
Reviews
123 reviews
Reviews
38,157 reviews
Reviews
14,226 reviews
Reviews
13,278 reviews

Features

Easy installation

9.4
Easy installation
9.1
Easy installation
8.9
Easy installation
9.8
Easy installation
8.9
Easy installation
8.1
Easy installation
9.3

Tech support

9.1
Tech support
7.6
Tech support
7.6
Tech support
9.4
Tech support
7.6
Tech support
7.0
Tech support
7.4

WiFi signal

9.1
WiFi signal
8.4
WiFi signal
8.6
WiFi signal
9.8
WiFi signal
8.4
WiFi signal
7.6
WiFi signal
8.6

Worth the money

9.3
Worth the money
9.1
Worth the money
8.6
Worth the money
9.8
Worth the money
7.9
Worth the money
7.2
Worth the money
8.6

Lasts a long time

9.1
Lasts a long time
9.4
Lasts a long time
9.1
Lasts a long time
9.8
Lasts a long time
8.1
Lasts a long time
8.4
Lasts a long time
8.6

Simple to use

9.1
Simple to use
9.6
Simple to use
8.9
Simple to use
9.9
Simple to use
8.1
Simple to use
9.3
Simple to use
8.6

Tech Specs

product dimensions

7.25 x 2.25 x 7.88 inches
product dimensions
1.75 x 5.13 x 5.25 inches
product dimensions
10 x 3 x 8 inches
product dimensions
7.25 x 2.25 x 7.88 inches
product dimensions
6.1 x 3.4 x 10.3 inches
product dimensions
10.55 x 6.75 x 2.46 inches
product dimensions
6.4 x 2 x 8.7 inches

item weight

1.12 ounces
item weight
9.9 ounces
item weight
2 pounds
item weight
1.87 pounds
item weight
1.95 pounds
item weight
1.39 pounds
item weight
12 ounces

customer reviews

4.4 4.4 out of 5 stars 28, 878 ratings 4.4 out of 5 stars
customer reviews
4.4 4.4 out of 5 stars 18, 450 ratings 4.4 out of 5 stars
customer reviews
3.9 3.9 out of 5 stars 11, 125 ratings 3.9 out of 5 stars
customer reviews
4.0 4.0 out of 5 stars 41 ratings 4.0 out of 5 stars
customer reviews
4.3 4.3 out of 5 stars 12, 719 ratings 4.3 out of 5 stars
customer reviews
4.2 4.2 out of 5 stars 4, 742 ratings 4.2 out of 5 stars
customer reviews
4.3 4.3 out of 5 stars 4, 426 ratings 4.3 out of 5 stars

color

-
color
White
color
-
color
-
color
Black
color
White
color
White

item dimensions lxwxh

-
item dimensions lxwxh
1.75 x 5.13 x 5.25 inches
item dimensions lxwxh
-
item dimensions lxwxh
-
item dimensions lxwxh
6.1 x 3.4 x 10.3 inches
item dimensions lxwxh
10.55 x 6.75 x 2.46 inches
item dimensions lxwxh
6.4 x 2 x 8.7 inches

Review

-
Review
-
Review Review
-
Review Review
-
Review
-

Available On

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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    motorola

    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

    9.4 Easy installation
    9.3 worth the money
    9.1 Tech Support

    Why we love it

    Eliminates rental fees.
    Compact and attractive design.
    Compatible with major cable providers.
  • 9.5
    2
    ARRIS
    26% Off

    ARRIS (SB8200) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit Cable Modem , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels

    9.6 Simple to use
    9.4 lasts a long time
    9.1 Easy installation

    Why we love it

    Fast internet speeds up to 1 Gbps.
    Compatible with major U.S. providers.
    Easy setup with app guidance.
  • 9.3
    3
    ARRIS
    36% Off

    ARRIS (G34) - Cable Modem Router Combo - Fast DOCSIS 3.1 Gigabit WiFi 6 (AX3000), Approved for Comcast Xfinity, Cox, Spectrum & More, 1 Gbps Max Internet Speeds

    9.1 lasts a long time
    8.9 Easy installation
    8.9 Simple to use

    Why we love it

    High-speed internet up to 1 Gbps.
    Easy setup with SURFboard Central App.
    Wi-Fi 6 provides strong coverage.

Our ranking system

At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.

Features

Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
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Consumer Reviews

We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
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Popularity

Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
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Value for money

AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
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