The ELM7179-4PS from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 7.1 to 7.9 GHz, Power 35 to 36 dBm, Power(W) 3.16 to 3.98 W, P1dB 35 to 36 dBm, Power Gain (Gp) 9.5 to 10.5 dB. Tags: Surface Mount. More details for ELM7179-4PS can be seen below.