The D-Link Wireless N 300 Router, DIR-615 provides a better wireless signal for your network than previous-generation Wireless G technology. Upgrading your home network to Wireless N 300 provides an excellent solution for sharing an Internet connection and files such as video, music, photos, and documents. It is backward compatible with 802.11b/g, ensuring compatibility with a wide range of wireless devices.The DIR-615 includes a built-in firewall that safeguards your network from harmful attacks. It minimizes the threats of hackers and prevents intruders from entering your network. Additional security features include a Stateful Packet Inspection (SPI) firewall that analyzes network traffic, and parental control that prevents users from viewing inappropriate content.