The TDC-10265-20S from Talent Microwave Inc is a Dual Directional Coupler with Coupling 20 dB, Coupling Variation ±1.8 dB, Frequency 1 to 26.5 GHz, Average Power 30 W, Insertion Loss 2 to 2.2 dB. Tags: Module with Connectors. More details for TDC-10265-20S can be seen below.