Linux based Internet sharing Router with built in 4 port Switch and Wireless G Access Point Shares a single Internet connection (10/100 WAN) with 4 Ethernet wired (10/100 switched LAN ;Compliant with the IEEE 802.11b/g protocol;LEDs: Power, DMZ, WLAN, Ethernet (1, 2, 3, 4), Internet Max. Link Rate:54 Mbps; Has 2 External Antennas ; supports WPA2 standards for use of the available encryption regardless of client devices and features a built in SPI firewall to prevent potential attacks from the Internet Interface: Ethernet Port; Ports: 1x 10/100 WAN, 4x 10/100 Switched LAN, 1x Power;Dimensions 3.91 x 3.85 x 3.92 inches/ 99.5 x 97.8 x 99.6 millimeters Platform Compatibility: Windows XP , Windows Vista 32/64 ; package includes router and no modem. Operating Humidity:10 to 85 percent Noncondensing