CISCO DPC3939 XB3 Cable Modem for Xfinity

  • High-Speed Compatibility: Designed for seamless integration with Xfinity’s high-speed Internet and voice services.
  • Robust Performance: Supports up to 16 downstream and 4 upstream channels, ideal for gaming, streaming, and data-intensive tasks.
  • Advanced Features: Provides dual-band wireless capabilities, VoIP support with two telephone ports, and IPv6 compatibility.
  • User-Friendly: Easy setup with Xfinity and the ability to use your own router in bridge mode.

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Description

Cisco DPC3939 Product Details

Introduction: Cisco DPC3939 XB3 Cable Modem is a high-performance modem that is designed for use with Xfinity’s high-speed Internet and voice services. It provides reliable and fast Internet access, making it a popular choice among Xfinity customers.

Cisco DPC3939 Compatibility

This modem is specifically designed for use with Xfinity’s high-speed Internet and voice services. It provides a seamless connection to Xfinity’s network, allowing for stable and fast Internet speeds. Xfinity customers can enjoy high-speed Internet access without any compatibility issues.

High-speed Internet Access

The Cisco DPC3939 XB3 Cable Modem supports up to 16 downstream and 4 upstream channels, providing higher Internet speeds for data-intensive activities like gaming and streaming. With dual-band wireless capabilities, users can choose between 2.4GHz and 5GHz for faster wireless speeds and reduced interference.

VoIP and IPv6 Support

In addition to high-speed Internet access, the DPC3939 also supports Voice Over IP (VoIP) service with two telephone ports. It is also compatible with IPv6, the next-generation Internet protocol, providing advanced network functionality and improved security.

In conclusion, the Cisco DPC3939 XB3 Cable Modem is a high-performance modem that provides reliable and fast Internet access. Compatible with Xfinity’s high-speed Internet and voice services, this modem offers dual-band wireless, 16×4 channel bonding, VoIP, and IPv6 support. It is a popular choice among Xfinity customers for its seamless connectivity and advanced features.

CISCO DPC3939 XB3 Cable Modem for Xfinity

Feature Description
Max Download Speed Up to 340 Mbps
Compatible Internet Providers Xfinity
Channel Bonding 16 downstream and 4 upstream channels
DOCSIS Support DOCSIS 3.0
Ethernet Ports 4 Gigabit Ethernet ports
Wireless Networking Dual-Band Wi-Fi (2.4GHz and 5GHz)
Parental Controls Parental controls and guest network options
LED Lights Easy-to-read front panel LEDs
Power External power adapter
Setup Easy setup with web-based setup wizard
DPC3939 Pros:
  1. High-speed Internet Access: With 16×4 channel bonding and dual-band wireless capabilities, this modem provides fast and stable Internet speeds for data-intensive activities like gaming and streaming.
  2. VoIP and IPv6 Support: The DPC3939 has two telephone ports for Voice Over IP (VoIP) service and is compatible with IPv6, providing advanced network functionality and improved security.
  3. Xfinity Compatibility: This modem is specifically designed for use with Xfinity’s high-speed Internet and voice services, providing a seamless connection and eliminating compatibility issues.
DPC3939 Cons:
  1. Limited Provider Compatibility: While the DPC3939 is designed for use with Xfinity, it may not be compatible with other Internet service providers.
  2. No Built-in Router: This modem does not have a built-in router, so users may need to purchase a separate router to access its wireless capabilities.
  3. Potential Signal Interference: The dual-band wireless capabilities of the DPC3939 may result in signal interference, reducing the overall quality of the wireless signal.

What’s Included:

  • CISCO DPC3939 Cable Modem
  • Ethernet Cable
  • Power Supply Cable
  • DSL / Phone Cable
  • Online Installation Manual

Will this work with my internet company?

This Cisco modem is primarily used and is compatible with Xfinity and other major cable internet providers in most areas. To verify that this model will work in your area, always contact your service provider’s customer service prior to placing your order with us to confirm that this model will work with your service plan. Some service plan speeds may not be supported.

Frequently Asked Questions

Q1: What services can I use with the Cisco DPC3939 XB3 Cable Modem? A: The Cisco DPC3939 XB3 Cable Modem is specifically designed for Xfinity’s high-speed Internet and voice services.

Q2: Can this modem handle high-speed Internet activities like gaming and streaming? A: Yes, the modem supports up to 16 downstream and 4 upstream channels, providing higher Internet speeds for data-intensive activities like gaming and streaming.

Q3: What is the wireless capability of this modem? A: The Cisco DPC3939 XB3 Cable Modem comes with dual-band wireless capabilities. Users can choose between 2.4GHz and 5GHz for faster wireless speeds and reduced interference.

Q4: Does the Cisco DPC3939 support VoIP? A: Yes, the Cisco DPC3939 modem supports Voice Over IP (VoIP) services with two telephone ports.

Q5: Is this modem compatible with IPv6? A: Yes, the Cisco DPC3939 modem is compatible with IPv6, the next-generation Internet protocol.

Q6: Is the Cisco DPC3939 XB3 Cable Modem compatible with other Internet service providers? A: This modem is specifically designed for use with Xfinity’s high-speed Internet and voice services, so it may not be compatible with other Internet service providers.

Q7: How do I set up my Cisco DPC3939 XB3 Cable Modem? A: For setting up your modem, refer to the user manual provided in the package. You can also contact Xfinity’s customer service for assistance.

Q8: What should I do if my Cisco DPC3939 XB3 Cable Modem is not working properly? A: If your modem is not working properly, try rebooting it first. If the problem persists, contact Xfinity’s customer service for further assistance.

Q9: Does the Cisco DPC3939 XB3 Cable Modem have a warranty? A: For warranty information, please refer to the product details or contact the seller.

Q10: Can I use my own router with the Cisco DPC3939 XB3 Cable Modem? A: Yes, the modem can be used in bridge mode which allows you to connect your own router. However, this might disable some of its features such as the in-built wireless network.

Specification

Overview

Brand

Cisco

Processor

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

Display

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

RAM

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

Storage

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

Video Card

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

Connectivity

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

Features

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

Battery

Brand

Cisco

Color

Black

Compatible Providers

Comcast Xfinity

DOCSIS Channels

16 x 4

DOCSIS Version

DOCSIS 3.0

Ethernet Ports

4-Port

Interface

Cable Modem

Wired Download Speeds

343 Mbps

Features

Easy-Installation, For Gaming, For Home, Video Streaming

Contents

Ethernet Cable, Modem, Power Cable, Quick-Install Guide Online

General

Color

Black

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