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Features
Linksys High Speed Cable Modem, DOCSIS 3.0 8x4

HIGH-SPEED INTERNET CONNECTIVITY FOR INTERNET PLANS UP TO 100 MBPS

Maximize Internet speeds to your Wi-Fi router with the Linksys 8x4 Cable Modem (CM3008). It delivers stable high-speed connectivity for existing Internet service plans up to 100 Mbps.* Your household will enjoy awesome Wi-Fi in no time with its easy setup.

Note: Cable customers with Internet speeds of up to 300 Mbps should use the Linksys CM3024 Cable Modem.

WORKS WITH ALL MAJOR CABLE PROVIDERS

Owning your own modem allows you to eliminate rental fees from your service provider. The Linksys CM3008 Cable Modem is certified to work with Internet service plans from major cable providers, including Comcast Xfinity, Time Warner, Cox, and Charter--providing savings up to $120 a year on modem rental fees.

How the CM3008 Cable Modem Works

GET THE MOST OUT OF YOUR EXISTING CABLE CONNECTION

Maximize the data transfer speeds of your current Internet service plan with eight download and four upload bonded channels on the CM3008 modem. These multiple bonded channels enable you to optimize media streaming and file transfers using the CM3008 by simultaneously transferring large amounts of data over many channels. The result is more effective and efficient usage of your existing cable broadband connection.

Additionally, the CM3008 has a slim, compact design that allows you to place the cable modem with your router, and maintain a clutter-free surface area.

DOCSIS 3.0 Speed Chart

HIGH-BANDWIDTH DATA TRANSFER WITH DOCSIS 3.0

Certified for DOCSIS 3.0 cable Internet standard, this powerful modem can handle high-bandwidth transfer rates over existing cable lines with speeds of up to 343 Mbps.*

Intel Inside

HIGH-SPEED PERFORMANCE POWERED BY INTEL PUMA 5 CHIPSET

To achieve high-speed downstream and upstream performance, the Linksys CM3008 Cable Modem features an Intel Puma 5 chipset. Designed to be a flexible and high-performing solution, the Puma 5 chipset will facilitate cutting-edge data service offerings as technology continues to advance.


EASY PLUG-AND-PLAY SETUP

To use the Linksys CM3008 Cable Modem, simply follow this three-step process:

Step 1 Plug modem into a power source

Plug modem into a power source

Step 2 Connect modem to wall jack

Use the coaxial cable to plug modem into wall jack

Step 3 Connect Ethernet cable

Connect Ethernet cable from modem to Wi-Fi router

Refurbished Icon

The Benefits of Buying Refurbished

  • Good for the environment. Good for your wallet. Most refurbished products are just customer returns, and don't require as much material or as many new parts as a new product. That means you can have a high-quality product for less money, and a smaller environmental impact.
  • Fully certified for peace of mind. Products are fully tested, with the latest firmware, and certified by Linksys technicians before they get to your door. We ensure any minor cosmetic blemishes do not affect the product's performance or overall design integrity.
  • 90-day warranty and support. If you need help with your product, we've got you covered. Simply contact support within 90 days of purchase for assistance.
Technical Specs
  • Cable (DOCSIS) Standards:
    • DOCSIS 1.1 Certified
    • DOCSIS 2.0 Certified
    • DOCSIS 3.0 Certified
  • Network Standards:
    • IEEE802.3
    • IEEE802.3u
    • IEEE802.3ab
    • IPv6 support (Internet Protocol Version 6)
  • Ports:
    1x Gigabit Ethernet
  • Maximum Line Rate:
    Up to 343Mbps Download, Up to 120 Mbps Upload
  • LEDs:
    Power, DS (Downstream), US (Upstream), Status, Link
  • Buttons:
    Reset
  • Power:
    12V 1A
  • Interfaces:
    Cable: F-type female 75 ohm
  • Warranty and Support:
    • 1-year limited warranty
    • 90-day complimentary assisted technical support
Support
Package Contents
  • Linksys 8x4 DOCSIS 3.0 Cable Modem, CM3008
  • Quick Start Guide
  • CD-ROM with Documentation
  • Ethernet Cable
  • Phone Cables
  • Power Adapter
*343 Mbps based on DOCSIS 3.0 throughput. Maximum speed varies depending on the service provided by the cable operator. IPv6 availability is dependent upon your ISP or service provider providing IPv6 capability.
†100/300 Mbps represent the maximum throughput you can achieve with your Internet plan provided by your cable service provider. Actual throughput will be lower than 100/300 Mbps, as this throughput is dependent on your contract with your cable service provider.
Refurbished products are mostly customer returns that meet original factory specifications. These products have been fully tested, upgraded to latest firmware, and certified by Linksys technicians via Linksys ISO certification procedures. These products may have minor cosmetic blemishes that do not impact their performance or overall product look integrity. Limited warranty and technical support period is ninety (90) days for refurbished product sold in the United States.