The NETGEAR CM600 high speed Cable Modem provides a connection to high-speed cable Internet, up to 960Mbps -- 24 downstream & 8 upstream channels. It's Cable Labs DOCSIS 3. 0 certified to work with cable Internet providers XFINITY from Comcast, spectrum, Cox, Cablevision and more. Maximum rate is derived from DOCSIS 3. 0 Specifications and actual throughput will vary depending on the MSO provisioning and speed tier subscription. Check your cable Internet service provider web site for data speed tier compatibility. NETGEAR makes no Express or implied representations or warranties about this product's compatibility with any future standards. System requirements: Cable broadband Internet service, Please check your cable Internet service provider web site for data speed tier compatibility: Microsoft Windows 7, 8, 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. : Memory: 8 MB NOR flash and 128 MB RAM.