The ELM5964-10F from Sumitomo Electric Device Innovations is a RF Transistor with Frequency 5.9 to 6.4 GHz, Power 39.5 to 40.5 dBm, Power(W) 8.91 to 11.22 W, P1dB 39.5 to 40.5 dBm, Power Gain (Gp) 9 to 10 dB. Tags: Flanged. More details for ELM5964-10F can be seen below.