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20 Best Internet Modem For Comcast (2023 Updated)

An Internet modem for Comcast is a device that connects your home or business to the Comcast network, delivering high-speed Internet service. Comcast offers a variety of Internet modem options to fit your needs, including high-speed and wireless models.

20 Best Internet Modem For Comcast

Product Image Product Name Features Price

ARRIS Surfboard Cable Modem SB8200

  • 2×2 OFDM/ OFDMA DOCSIS 3.1 channels and/or 32×8 SCQAM DOCSIS 3.0
  • 1.2 GHz Full Capture Bandwidth Tuner
  • Multi Processor Technology with ARM based Application Processor

Netgear Nighthawk 2.5Gbps Cable Modem

  • Type: Cable ModemStandards: One (1) LAN 2.5Gbps Gigabit Ethernet port
  • One (1) WAN coaxial cable connectionPackage Contents: Nighthawk 2.5Gbps Internet Speed

Netgear Cable Modem CM1000

  • 32×8, Docsis 3.1

Motorola MB7621 24×8 Cable Modem – 1000 Mbps

  • Its LEDs indicates the connection status to keep you notified about the network strength
  • Eight upstream channels offer enhanced data speed

Motorola MB8611 Docsis 3.1 Cable Modem

  • Allows you to choose a preferred provider and data planUltra-fast DOCSIS 3.1 performance.
  • Supports the fastest internet plans out there complete with fallback to 32×8 DOCSIS 3.0. Pairs with any WiFi router.

ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum & Others

  • MULTI-GIG NETWORKING: The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network.

Netgear CM500-1AZNAS (16×4) Docsis 3.0 Cable Modem

  • Up To 300

ARRIS Surfboard SBV2402 Docsis 3.0 Cable Modem, Certified for Xfinity Internet & Voice (Black)

  • Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers

ARRIS – SURFboard 32 x 8 DOCSIS 3.1 Cable Modem – White SB8200

  • 32 x 8 Docsis 3.1

ARRIS – Surfboard 32 x 8 Docsis 3.0 Voice Cable Modem for Xfinity – Black

  • DOCSIS 3.0 technology in the modem allows you to download data at a speed of up to 1.4 Gb per second
  • It features 2 voice ports where you can connect telephone lines

ARRIS Surfboard SB6183 Docsis 3.0 Cable Modem Black

  • 16 x 4 Docsis 3.0

ARRIS Surfboard (32×8) Docsis 3.0 Cable Modem for Xfinity Internet&Voice SBV3202

  • Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers

Arris SURFboard SB6190 Docsis 3.0 Cable Modem, 1.4 Gbps Download Speeds, White

  • Internet speeds up to 1.4 Gbps DOWNLOAD and 262 Mbps UPLOAD based on your Cable ISP subscription.
  • 32 DOWNLOAD & 8 UPLOAD channels to future proof your modem as your Cable ISP enhances service offerings.

ARRIS Surfboard 24×8 Cable Modem with Telephony – Black (SBV2402)

  • Boost your internet connection with the help of this modem
  • This modem facilitates maximum speed of up to 1Gbps for smooth browsing

Netgear Gigabit Cable Modem (32×8) Docsis 3.1 | for Xfinity by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)

  • Fast download and upload speed
  • Gigabit Ethernet port

Arris SURFboard T25 Docsis 3.1 Gigabit Cable Modem for Xfinity Internet & Voice, Black

  • A great choice for Xfinity Internet & Voice gigabit speed subscribers.
  • The SURFboard T25 is perfect for high bandwidth homes.

ARRIS Solutions SB6183 Surfboard Docsis 3.0 White

  • DOCSIS 3.0 Cable Modem best for cable internet speed plans up to 400 Mbps.
  • 16 downstream x 4 upstream DOCSIS 3.0 bonded channels.

ARRIS Surfboard S33 Docsis 3.1 Cable Modem

  • DOCSIS 3.1 cable modem best for cable internet speed plans up to 3.5 Gbps
  • Compatible with Cox, Spectrum, Xfinity and other major U.S. cable internet providers
ARRIS Surfboard Cable Modem SB8200
  • 2×2 OFDM/ OFDMA DOCSIS 3.1 channels and/or 32×8 SCQAM DOCSIS 3.0
  • 1.2 GHz Full Capture Bandwidth Tuner
  • Multi Processor Technology with ARM based Application Processor
Netgear Nighthawk 2.5Gbps Cable Modem
  • Type: Cable ModemStandards: One (1) LAN 2.5Gbps Gigabit Ethernet port
  • One (1) WAN coaxial cable connectionPackage Contents: Nighthawk 2.5Gbps Internet Speed
Netgear Cable Modem CM1000
  • 32×8, Docsis 3.1
Motorola MB7621 24×8 Cable Modem – 1000 Mbps
  • Its LEDs indicates the connection status to keep you notified about the network strength
  • Eight upstream channels offer enhanced data speed
Motorola MB8611 Docsis 3.1 Cable Modem
  • Allows you to choose a preferred provider and data planUltra-fast DOCSIS 3.1 performance.
  • Supports the fastest internet plans out there complete with fallback to 32×8 DOCSIS 3.0. Pairs with any WiFi router.
ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum & Others
  • MULTI-GIG NETWORKING: The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network.
Netgear CM500-1AZNAS (16×4) Docsis 3.0 Cable Modem
  • Up To 300
ARRIS Surfboard SBV2402 Docsis 3.0 Cable Modem, Certified for Xfinity Internet & Voice (Black)
  • Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers
ARRIS – SURFboard 32 x 8 DOCSIS 3.1 Cable Modem – White SB8200
  • 32 x 8 Docsis 3.1
ARRIS – Surfboard 32 x 8 Docsis 3.0 Voice Cable Modem for Xfinity – Black
  • DOCSIS 3.0 technology in the modem allows you to download data at a speed of up to 1.4 Gb per second
  • It features 2 voice ports where you can connect telephone lines
ARRIS Surfboard SB6183 Docsis 3.0 Cable Modem Black
  • 16 x 4 Docsis 3.0
ARRIS Surfboard (32×8) Docsis 3.0 Cable Modem for Xfinity Internet&Voice SBV3202
  • Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers
Arris SURFboard SB6190 Docsis 3.0 Cable Modem, 1.4 Gbps Download Speeds, White
  • Internet speeds up to 1.4 Gbps DOWNLOAD and 262 Mbps UPLOAD based on your Cable ISP subscription.
  • 32 DOWNLOAD & 8 UPLOAD channels to future proof your modem as your Cable ISP enhances service offerings.
ARRIS Surfboard 24×8 Cable Modem with Telephony – Black (SBV2402)
  • Boost your internet connection with the help of this modem
  • This modem facilitates maximum speed of up to 1Gbps for smooth browsing
Netgear Gigabit Cable Modem (32×8) Docsis 3.1 | for Xfinity by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)
  • Fast download and upload speed
  • Gigabit Ethernet port
Arris SURFboard T25 Docsis 3.1 Gigabit Cable Modem for Xfinity Internet & Voice, Black
  • A great choice for Xfinity Internet & Voice gigabit speed subscribers.
  • The SURFboard T25 is perfect for high bandwidth homes.
ARRIS Solutions SB6183 Surfboard Docsis 3.0 White
  • DOCSIS 3.0 Cable Modem best for cable internet speed plans up to 400 Mbps.
  • 16 downstream x 4 upstream DOCSIS 3.0 bonded channels.
ARRIS Surfboard S33 Docsis 3.1 Cable Modem
  • DOCSIS 3.1 cable modem best for cable internet speed plans up to 3.5 Gbps
  • Compatible with Cox, Spectrum, Xfinity and other major U.S. cable internet providers

1. ARRIS Surfboard Cable Modem SB8200

ARRIS Surfboard Cable Modem SB8200

  • 2×2 OFDM/ OFDMA DOCSIS 3.1 channels and/or 32×8 SCQAM DOCSIS 3.0
  • 1.2 GHz Full Capture Bandwidth Tuner
  • Multi Processor Technology with ARM based Application Processor
  • Dual Gigabit Ethernet Ports with Auto Negotiate and Auto MDIX
  • Switchable upstream filters for 42 MHz or 85MHz operation

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Product Details

Specifications

Details
Manufacturer Part Number SB8200
Product Line SURFboard
Product Model SB8200
Product Name SURFboard Cable Modem
Package Type Retail

2. Netgear Nighthawk 2.5Gbps Cable Modem

Netgear Nighthawk 2.5Gbps Cable Modem

  • Type: Cable ModemStandards: One (1) LAN 2.5Gbps Gigabit Ethernet port
  • One (1) WAN coaxial cable connectionPackage Contents: Nighthawk 2.5Gbps Internet Speed
  • One (1) Ethernet cable
  • Quick install guide
  • Power adapter

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Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus 2.5 Gigabit Ethernet
Connectivity Technology Wired
Max Transfer Rate 2.5 Gbps

3. Netgear Cable Modem CM1000

Netgear Cable Modem CM1000

  • 32×8, Docsis 3.1

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Amazon.com – Seller
Back Market
Crafty Box Store – we sell cool stuff
Sears – ErgodE

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus Gigabit Ethernet
Connectivity Technology Wired
Max Transfer Rate 1 Gbps

4. Motorola MB7621 24×8 Cable Modem – 1000 Mbps

Motorola MB7621 24x8 Cable Modem - 1000 Mbps

  • Its LEDs indicates the connection status to keep you notified about the network strength
  • Eight upstream channels offer enhanced data speed
  • Power surge and lightning protection helps keep your devices safe against unregulated voltage

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Walmart – Motorola Networks
Best Buy

Product Details

Specifications

Details
Width 2.2 in
Depth 7.2 in
Height 7.9 in
Expansion / Connectivity
Interfaces 1 x antenna – F connector 1 x 1000Base-T – RJ-45
General
Device Type Cable modem
Form Factor External
Manufacturer Warranty
Service & Support Limited warranty – 2 years
Miscellaneous
Cables Included 1 x network cable
Included Accessories Power adapter
Compliant Standards FCC Part 15 B
Modem
Bus Gigabit Ethernet
Processor Broadcom
Max Transfer Rate 1000 Mbps
Protocols & Specifications DOCSIS 2.0, DOCSIS 1.1, DOCSIS 3.0
Multiplexed Channels Qty 24
Networking
Connectivity Technology Wired
Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet
Data Transfer Rate 1000 Mbps
Features IPv6 support, reset button, IPv4 support

5. Motorola MB8611 Docsis 3.1 Cable Modem

Motorola MB8611 Docsis 3.1 Cable Modem

  • Allows you to choose a preferred provider and data planUltra-fast DOCSIS 3.1 performance.
  • Supports the fastest internet plans out there complete with fallback to 32×8 DOCSIS 3.0. Pairs with any WiFi router.
  • Cable Internet service, AC power, PC (Windows, Mac, or Linux) or Smart device (iOS or Android) with web browserSecurity.
  • Protect your work and life online with a system that’s secure by design.

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Amazon.com – Seller
Walmart
Best Buy
Shop Motorola Network

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Enclosure Color Black
Bus 2.5 Gigabit Ethernet
Max Transfer Rate 6000 Mbps

6. ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum & Others

ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port, Approved for Cox, Xfinity, Spectrum & Others

  • MULTI-GIG NETWORKING: The SURFboard S33 features a 2.5 Gbps Ethernet port plus an additional 1 Gbps Ethernet port for a 2nd network.
  • Cable internet service required. Does NOT include Wi-Fi and does not support cable digital voice service.
  • DOCSIS 3.1 Cable Modem approved for cable internet speed plans up to 1.2 Gbps.
  • 32 downstream x 8 upstream DOCSIS 3.0 bonded channels, 2 downstream x 2 upstream OFDM DOCSIS 3 1 channels.
  • Connects to any existing Wi-Fi router for blazing-fast internet.

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Newegg.com – Auto Tech Parts LLC
kol.deals

Product Details

Specifications

Details
Style 3.1 Modem
Item Dimensions 5.14 x 1.8 x 4.74 Inches
Number of Ports 2
Connectivity Technology Ethernet
Internet service provider Suddenlink, Xfinity, Cox, Mediacom, Spectrum

7. Netgear CM500-1AZNAS (16×4) Docsis 3.0 Cable Modem

Netgear CM500-1AZNAS (16x4) Docsis 3.0 Cable Modem

  • Up To 300

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Amazon.com – Seller
eBay

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Built-in Devices 8 MB flash
Localization North America
Bus Gigabit Ethernet

8. ARRIS Surfboard SBV2402 Docsis 3.0 Cable Modem, Certified for Xfinity Internet & Voice (Black)

ARRIS Surfboard SBV2402 Docsis 3.0 Cable Modem, Certified for Xfinity Internet & Voice (Black)

  • Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers
  • DOCSIS 3 0 cable Modem with 24 downstream x 8 upstream channels, best for Xfinity cable internet speed plans up to 400 Mbps
  • 1 Gigabit Ethernet port for connection to a Wi-Fi router or other wired device
  • 2 telephone ports for Xfinity digital voice service
  • Xfinity internet service required Does not include Wi-Fi

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eBay
Bonanza – big on discounts
Crafty Box Store – we sell cool stuff

Product Details

Specifications

Details
Package Dimensions 10.28 x 8.43 x 2.28 inches
Country of Origin Indonesia
Number of Ports 3
Maximum Downstream Data Transfer Rate 800 Megabits Per Second
Maximum Upstream Data Transfer Rate 262 Megabits Per Second

Reviews From Real Customers

Oiprac
Tourist
NJSuZQ

9. ARRIS – SURFboard 32 x 8 DOCSIS 3.1 Cable Modem – White SB8200

ARRIS - SURFboard 32 x 8 DOCSIS 3.1 Cable Modem - White SB8200

  • 32 x 8 Docsis 3.1

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Target

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus Gigabit Ethernet
Protocols & Specifications DOCSIS 3.1
Connectivity Technology Wired

10. Netgear Nighthawk Multi-Gig Cable Modem with Voice CM2050V – for Xfinity Internet & Voice Supports Cable Plans Up to 2.5Gbps 2 Phone Lines Docsis 3.1

Netgear Nighthawk Multi-Gig Cable Modem with Voice CM2050V - for Xfinity Internet & Voice Supports Cable Plans Up to 2.5Gbps 2 Phone Lines Docsis 3.1

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Product Details

11. ARRIS – Surfboard 32 x 8 Docsis 3.0 Voice Cable Modem for Xfinity – Black

ARRIS - Surfboard 32 x 8 Docsis 3.0 Voice Cable Modem for Xfinity - Black

  • DOCSIS 3.0 technology in the modem allows you to download data at a speed of up to 1.4 Gb per second
  • It features 2 voice ports where you can connect telephone lines
  • Assembled with multi-processor to help enhance the overall performance

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B&H Photo-Video-Audio
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Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus Gigabit Ethernet
Max Transfer Rate 1.4 Gbps
Protocols & Specifications DOCSIS 3.0

Reviews From Real Customers

Beans

12. ARRIS Surfboard SB6183 Docsis 3.0 Cable Modem Black

ARRIS Surfboard SB6183 Docsis 3.0 Cable Modem Black

  • 16 x 4 Docsis 3.0

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electroeshop.com
Discount Bandit – Gadgets Galore

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Enclosure Color Black
Bus Gigabit Ethernet
Connectivity Technology Wired

13. ARRIS Surfboard (32×8) Docsis 3.0 Cable Modem for Xfinity Internet&Voice SBV3202

ARRIS Surfboard (32x8) Docsis 3.0 Cable Modem for Xfinity Internet&Voice SBV3202

  • Certified to work with Xfinity internet & voice service Not certified for use with other cable internet service providers
  • DOCSIS 3 0 cable Modem with 32 downstream x 8 upstream channels, best for Xfinity cable internet speed plans up to 600 Mbps
  • 1 Gigabit Ethernet port for connection to a Wi-Fi router or other wired device
  • 2 telephone ports for Xfinity digital voice service
  • Xfinity internet service required Does not include Wi-Fi

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Product Details

Specifications

Details
Piece Count 1
Maximum Data Transfer Rate 1.4 Gbps
System of Measurement U.S. Customary
Count Per Pack 10
Count 1

14. Arris SURFboard SB6190 Docsis 3.0 Cable Modem, 1.4 Gbps Download Speeds, White

Arris SURFboard SB6190 Docsis 3.0 Cable Modem, 1.4 Gbps Download Speeds, White

  • Internet speeds up to 1.4 Gbps DOWNLOAD and 262 Mbps UPLOAD based on your Cable ISP subscription.
  • 32 DOWNLOAD & 8 UPLOAD channels to future proof your modem as your Cable ISP enhances service offerings.
  • Ideal for streaming HD Video and gaming on multiple devices at a time.

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Micro Center

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus Gigabit Ethernet
Connectivity Technology Wired
Max Transfer Rate 1.4 Gbps

15. ARRIS Surfboard 24×8 Cable Modem with Telephony – Black (SBV2402)

ARRIS Surfboard 24x8 Cable Modem with Telephony - Black (SBV2402)

  • Boost your internet connection with the help of this modem
  • This modem facilitates maximum speed of up to 1Gbps for smooth browsing

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Product Details

Specifications

Details
Maximum Speed Up to 1 Gbps
Number of Downstream Channel 24
Number of Upstream Channel 8

16. Netgear Gigabit Cable Modem (32×8) Docsis 3.1 | for Xfinity by Comcast, Cox. Compatible with Gig-Speed from Xfinity – CM1000-1AZNAS (Renewed)

Netgear Gigabit Cable Modem (32x8) Docsis 3.1 | for Xfinity by Comcast, Cox. Compatible with Gig-Speed from Xfinity - CM1000-1AZNAS (Renewed)

  • Fast download and upload speed
  • Gigabit Ethernet port

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Newegg.com – Auto Tech Parts LLC

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus Gigabit Ethernet
Connectivity Technology Wired
Max Transfer Rate 1 Gbps

17. Arris SURFboard T25 Docsis 3.1 Gigabit Cable Modem for Xfinity Internet & Voice, Black

Arris SURFboard T25 Docsis 3.1 Gigabit Cable Modem for Xfinity Internet & Voice, Black

  • A great choice for Xfinity Internet & Voice gigabit speed subscribers.
  • The SURFboard T25 is perfect for high bandwidth homes.
  • Arris gives you the speed you need at the price you want. Save on Rental Fees.
  • Quick & Easy Setup.
  • Connect all your mobile devices and smart home products seamlessly with Arris.

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Target

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus Gigabit Ethernet
Processor Intel / ARM
Max Transfer Rate 10 Gbps

Reviews From Real Customers

MrEd
Maflagulator
MikeH

18. ARRIS Surfboard Sb6190 32×8 Docsis 3.0 Cable Modem with 1.4 Gbps Download and 262 Upload Speeds, White (Used)

ARRIS Surfboard Sb6190 32x8 Docsis 3.0 Cable Modem with 1.4 Gbps Download and 262 Upload Speeds, White (Used)

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Product Details

19. ARRIS Solutions SB6183 Surfboard Docsis 3.0 White

ARRIS Solutions SB6183 Surfboard Docsis 3.0 White

  • DOCSIS 3.0 Cable Modem best for cable internet speed plans up to 400 Mbps.
  • 16 downstream x 4 upstream DOCSIS 3.0 bonded channels.
  • 1 Gigabit Ethernet port for connecting to a Wi-Fi router or other device.
  • Cable internet service required. Does not inlcude Wi-Fi and does not support cable digital voice service.

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Product Details

Specifications

Details
Manufacturer Part Number SB6183
Product Line SURFboard
Product Model SB6183
Product Name Arris SURFboard SB6183 Cable Modem
Product Type Cable Modem

20. ARRIS Surfboard S33 Docsis 3.1 Cable Modem

ARRIS Surfboard S33 Docsis 3.1 Cable Modem

  • DOCSIS 3.1 cable modem best for cable internet speed plans up to 3.5 Gbps
  • Compatible with Cox, Spectrum, Xfinity and other major U.S. cable internet providers
  • 32 x 8 DOCSIS 3.0 modem channels
  • 2 downstream x 2 upstream OFDM DOCSIS 3.1 channels
  • One 2.5-Gigabit Ethernet port and One 1 Gigabit Ethernet port

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ARRIS
Micro Center

Product Details

Specifications

Details
Device Type Cable modem
Form Factor External
Bus 2.5 Gigabit Ethernet
Connectivity Technology Wired
Max Transfer Rate 3.5 Gbps

Conclusion

Comcast’s high-speed Internet service is called XFINITY Internet. It is one of the largest and most reliable Internet service providers (ISP) in the United States. Comcast has been in business for over 50 years and offers Internet service in 39 states and the District of Columbia.

Comcast’s XFINITY Internet service offers speeds of up to 105 Mbps in some areas. Comcast also offers a variety of other Internet services, including XFINITY TV, XFINITY Voice, and XFINITY Home.

If you’re looking for a reliable and high-speed Internet service provider, Comcast is a great option.

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