The OH-T-10400-13 from A-Info is a Directional Coupler with Frequency 1.0 to 40.0 GHz, Coupling 13 dB, Coupling Variation ±0.80 dB, Directivity 11 dB, Insertion Loss 2.3 dB. Tags: Module with Connectors. More details for OH-T-10400-13 can be seen below.