Netgear Cable Modem Cm500 - Compatible With All Cable Providers, Including Product Details 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. 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. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.