Here are the specifications for the tp-link tl-wr940n 450mbps wireless n router:
wireless standards: ieee 802.11n, ieee 802.11g, ieee 802.11b.
frequency: 2.4-2.4835ghz.
wireless speed: up to 450mbps.
ethernet ports: 4 10/100mbps lan ports, 1 10/100mbps wan port.
antennas: 3 fixed omni directional antennas.
buttons: power on/off, reset, wi-fi/wps.
dimensions: 9.1 x 5.7 x 1.4 inches (230 x 144 x 35mm).
security: wpa/wpa2, wpa-psk/wpa2-psk authentication.
power supply: 9vdc / 0.6a.
multi -mode function: router mode, access point and extender mode