The ZDDC10-K0244 from Mini Circuits is a Dual Directional Coupler with Coupling 10 dB, Coupling Variation ±0.6 to 1 dB( Flatness), Frequency 2 to 40 GHz, Power 16 W, Insertion Loss 1.4 to 3.3. Tags: Module with Connectors. More details for ZDDC10-K0244 can be seen below.