The DIR-635 Wireless N Router connects to any modem or ISP box to provide Internet access for computers and other network equipment. Wireless N technology offers more speed, extended coverage and virtually no dead spots while still compatible with previous network standards. This router transfers data at speeds of up to 300 Mbps. This router, with its Quality of Service feature, automatically detects if audio, video or gaming content is being transmitted over the network and gives these applications priority over less time-sensitive traffic such as email or file transfers. Setting the router up is easy even for non-technically minded people, with D-Link Click''n Connect: run directly from the product CD-ROM, this wizard takes you through an interactive step-by-step guide that will get you on-line in a matter of minutes. It also includes a simplified method of setting up wireless encryption, the WiFi Wireless Protect Setup (WPS), which works at the touch of a button. A powerful dual firewall (SPI and NAT) prevents Denial of Service (DoS) attacks and attempts to breach your network from the Internet. You can also define a list of allowed sites to restrict web access during certain periods.