NETGEAR Cable Modem CM500 DOCSIS 3.0

The NETGEAR CM500 is a DOCSIS 3.0 cable modem that delivers reliable broadband connectivity for home networks and supports ISP speed tiers up to 400 Mbps when paired with the right service plan.

Built to replace rental equipment and connect directly to any WiFi router, the CM500 offers 16x4 channel bonding and a single gigabit Ethernet port so your router or desktop can access full cable Internet throughput. Certified by cable labs and compatible with major U.S. providers such as Comcast XFINITY and Cox, this modem focuses on cost savings, stability, and straightforward setup. Note: it does not support bundled voice (VoIP) services.

How does the CM500 improve my home Internet experience?

The CM500 removes the monthly rental fee and provides a stable modem interface between your ISP and your router or computer. Its DOCSIS 3.0 design and channel bonding optimize downstream capacity so you can take full advantage of many cable speed tiers.

• 16x4 channel bonding for aggregated download performance.
• One gigabit Ethernet port to connect a router or PC.
• Cable Labs certified for industry interoperability and reliability.

Will this modem work with my cable provider and plan?

The CM500 is compatible with the majority of U.S. cable providers, including Comcast XFINITY and Cox, for a variety of consumer speed tiers. Compatibility depends on the specific plan; check your ISP’s approved modem list and speed tier limits before purchasing.

• Works with major U.S. providers — verify on your ISP site for exact tier support.
• Typical carrier support examples: XFINITY (up to common consumer tiers), Cox (supported tiers).
• Not designed for cable voice (VoIP) bundles — voice services may still require provider hardware.

How do I set up and maintain the NETGEAR CM500?

Installation is a simple three-step process: connect the coax cable, attach the Ethernet cable to your router or computer, then follow your ISP activation procedure. Firmware updates are handled by your Internet service provider, so no manual firmware management is required.

• Connect coaxial cable to the modem and power it on.
• Use the modem’s gigabit Ethernet port to link to your router or PC.
• Complete activation through your cable provider’s activation page or support line.

What hardware and system requirements should I know before buying?

The CM500 needs an active cable broadband subscription and a router if you want WiFi throughout your home. It supports common desktop and laptop TCP/IP operating systems and requires a modern browser for ISP activation pages.

• Requires active cable Internet service and approved plan compatibility.
• Works with Windows, macOS, and other TCP/IP–based systems for connected devices.
• Pair with any third‑party WiFi router to provide wireless access for multiple devices.

Who is this for? The NETGEAR CM500 is best for households that want to stop renting a modem, save on monthly equipment fees, and get dependable wired connectivity for a separate router or desktop. It suits users on common cable speed tiers who need a straightforward, certified DOCSIS 3.0 modem without bundled voice support. If you require voice service or DOCSIS 3.1 features for multi‑hundred‑megabit and gigabit plans, consider a modem that explicitly supports those options.