The RFX8422S from RFaxis is a Front End Module with Frequency 2.4 to 2.5 GHz, Tx Power 18 dBm (802.11g), 17 dBm (802.11b), Tx Gain 25 dB, Tx Current 170 mA, Voltage 2.9 to 4.5 V. Tags: Transmit / Receive Module. More details for RFX8422S can be seen below.