The CD-2-2000-8000-10-10-30-SF-SF-SF / 800027 from DETI Microwave is a Dual Directional Coupler with Coupling 10 dB, Coupling Variation ±1 dB (Coupling value tolerance), Frequency 2 to 8 GHz, Average Power 30 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for CD-2-2000-8000-10-10-30-SF-SF-SF / 800027 can be seen below.