The CMIDC-B201-20 from Quantic Corry is a Directional Coupler with Frequency 800 MHz to 2.5 GHz, Coupling 20 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.5 dB, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for CMIDC-B201-20 can be seen below.