Asus M2N32-SLI Deluxe - Manual (Page 15)

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2.1.3 Signal range
The signal range of WiFi-AP Solo™ depends on the operating environment.
Obstacles such as walls and metal barriers could reflect or absorb radio
signals. Devices such as microwave stove can also greatly interfere the
wireless network.
Signal range:
802.11g: Indoor 80ft (30m), outdoor (LOS, Light-Of-Sight) 200ft (60m)
802.11b: Indoor 130ft (40m), outdoor (LOS, Light-Of-Sight) 1000ft (310m)
By default, the device automatically adjusts the data rate and the closer
wireless station is, the better signal and transmit speed it receives. To improve
your wireless transmission, move your wireless stations closer to the WiFi-AP
Solo™.