The TDC-05180-10N from Talent Microwave Inc is a Dual Directional Coupler with Coupling 10 dB, Coupling Variation ±1.8 dB, Frequency 0.5 to 18 GHz, Average Power 50 W, Insertion Loss 2.2 to 2.6 dB. Tags: Module with Connectors. More details for TDC-05180-10N can be seen below.