The TDC-10670-20-1.85 from Talent Microwave Inc is a Dual Directional Coupler with Coupling 20 dB, Coupling Variation ±3.5 dB, Frequency 1 to 67 GHz, Average Power 30 W, Insertion Loss 3.5 to 4.5 dB. Tags: Module with Connectors. More details for TDC-10670-20-1.85 can be seen below.