Security: Wi-Fi Protected Access (WPA/WPA2—PSK) and WEP Double firewall protection (SPI and NAT firewall) Denial-of-service (DoS) attack prevention WPA/WPA2: WPA2 Ports: 1 x 10/100/1000M WAN; 4 x 10/100/1000M LAN Frequency Band: 2.4GHz/5GHz Interface: Ethernet Port Wireless Adapter included: No System Requirements: Broadband (cable, DSL) Internet service and modem with Ethernet connection 2.4 or 5.0 GHz 802.11a/b/g/n specification wireless adapter or an Ethernet adapter and cable for each computer Microsoft Windows 7, Vista, XP, 2000, Mac OS, UNIX, or Linux Microsoft Internet Explorer 5.0, Firefox 2.0 or Safari 1.4 or higher Use with an N600 Wireless Dual Band USB Adapter (WNDA3100) for maximum performance Dimensions: 8.8" x 6.0" x 1.2"