The OH-T-20500-16 from A-Info is a Directional Coupler with Frequency 2 to 50 GHz, Coupling 16 dB, Coupling Variation ±0.60 to ±0.80 dB, Directivity 10 to 13 dB, Insertion Loss 1.7 dB. Tags: Module with Connectors. More details for OH-T-20500-16 can be seen below.