The TC-10400-13K from Talent Microwave Inc is a Directional Coupler with Frequency 1 to 40 GHz, Coupling 13 dB, Coupling Variation ±2.0 dB, Directivity 10 to 12 dB, Average Power 20 W. Tags: Module with Connectors. More details for TC-10400-13K can be seen below.