Netgear CM500 - High Speed Cable Modem - DOCSIS 3.0 Product Data Sheet
Summary
The CM500 is a DOCSIS 3.0 certified high-speed cable modem designed for reliable and fast internet connectivity, supporting speeds up to 680 Mbps. This documentation walks users through its key technical specifications, including advanced features like Gigabit Ethernet connectivity and IPv6 support. It is ideal for individuals with major cable Internet providers (like Xfinity or Spectrum) who require a robust setup and wish to save money by owning their equipment instead of paying monthly rental fees. Note that this modem is intended only for high-speed data services and is not compatible with bundled voice phone lines.
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CM500 High Speed Cable Modem—DOCSIS® 3.0 Data Sheet
CM500
Performance & Use
• Save up to $120 a year1—No rental fees • Cable Internet speeds up to 680 Mbps‡—16 downstream & 4 upstream channels • Ideal for XFINITY® Blast/Extreme and Spectrum® Internet plans • Cable Labs® DOCSIS® 3.0 Certified to work with cable Internet providers XFINITY® from Comcast, Spectrum®, Cox® , Cablevision and more
Overview
The NETGEAR CM500 High Speed Cable Modem provides a connection to high-speed cable Internet with speeds up to 680 Mbps‡. It is Cable Labs® certified DOCSIS® 3.0 that is 16X faster than 2.0 devices. A Gigabit Ethernet port provides faster access and downloads.
The NETGEAR Difference - CM500 Fast Cable Internet Access • Gigabit Ethernet port
• Up to 680 Mbps‡ download for streaming HD videos, faster downloads, and high-speed online gaming —Ideal for XFINITY® and Spectrum® Internet plans
• DOCSIS® 3.0 Cable Labs® certified
• Save money over time by owning your cable equipment and avoiding
• Supports IPv6
monthly rental charges from your Internet provider—up to $120 per year1
• Secure connection
• 16 downstream & 4 upstream channels providing efficient and reliable
• Easy installation
Internet access • Cable Labs® DOCSIS® 3.0 certified to work with U.S. cable Internet providers like XFINITY® from Comcast, Spectrum®, Cox®, Cablevision & more (not compatible with Cable bundled voice services) • Fast web self-activation for XFINITY customers—Get connected without a service call • Gigabit Ethernet port—Fastest wired speeds to connect your router or computer
1Based on a typical monthly equipment rental fee of $10 per month.
Desktop or Laptop Computer
Cable Internet
Wireless Router
Connection
High Speed Cable Modem (CM500)
Connect the CM500 High Speed Cable Modem directly to your computer or wireless router for connecting to other wireless devices. PAGE 1 OF 2
Page Summary Contents For Netgear CM500 - High Speed Cable Modem - DOCSIS 3.0 Product Data Sheet
Manual Details
| Brand | NETGEAR |
|---|---|
| Pages | 2 |
| File Size | 565.07 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
Is this modem compatible if I also use cable bundled voice services?
No, this product is not compatible with Cable bundled voice services.
What maximum download speed can the CM500 support?
It offers speeds up to 680 Mbps using 16 downstream and 4 upstream channels.
How complex is the initial setup process?
The installation is CD-less, and XFINITY customers can use fast web self-activation for connection.
What should I verify before guaranteeing compatibility with my cable network?
You must check your cable internet service provider website to confirm data speed tier compatibility.