AirLink 101 AR670W 300 Mbps 802.11n Wireless LAN/Firewall 4-Port Router AirLink AR670W 802.11n Wireless N 4-Port Router General Features: Frequency Band: 2.4 GHz Standards: IEEE 802.11b/IEEE 802.11g/IEEE 802 802.11n Draft 2.0 Antenna Type: 2 external 2 dBi antennas Quality of Service (QoS) WMM feature Stateful Packet Inspection (SPI)/DoS VPN Pass-through WPS button for security setup FireWall Protection: NAT + SPI