The JC27002900P67C50 from RFTR Electronics is a Directional Coupler with Frequency 2.7 to 2.9 GHz, Coupling 50 dB, Coupling Variation ±0.35 dB, Directivity 20 dB, Average Power 5000 W(Pulsed). Tags: Module with Connectors. More details for JC27002900P67C50 can be seen below.