The TC-20400-15K from Talent Microwave Inc is a Directional Coupler with Frequency 2 to 40 GHz, Coupling 15 dB, Coupling Variation ±1.8 dB, Directivity 10 to 15 dB, Average Power 50 W. Tags: Module with Connectors. More details for TC-20400-15K can be seen below.