Save monthly rental fees: Model CM500 replaces your cable modem, saving you up to $168/yr in equipment rental fees.
Speeds by carrier: Spectrum (up to 400Mbps), Xfinity (up to 200Mbps), Cox (up to 150Mbps).
Works with any wifi router: Connect any WiFi router to this modem's Ethernet port to support all your wireless devices.
Ethernet connections: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
Modem technology: Engineered with 16x4 channel bonding and DOCSIS 3.0.

 
The NETGEAR CM500 high speed Cable Modem provides a connection to high-speed cable Internet, up to 680Mbps. It is cable labs Certified and with DOCSIS 3. 0 is 16x faster than 2. 0 devices. It works with U. S. Cable Internet provider Comcast XFINITY & more. It is not compatible with cable bundled Voice services.
System Requirements
Cable Broadband Internet service
Please check your cable Internet service provider web site for data speed tier compatibility
Microsoft Windows 7, 8, 10, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network
Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher.
 You cannot manually update your NETGEAR cable modem or modem router’s firmware. NETGEAR provides your ISP with the latest firmware and your ISP updates your firmware.