The DCE10S-0.8-2.7 from ESJ Technology is a Directional Coupler with Frequency 0.8 to 2.7 GHz, Coupling 10 dB, Coupling Variation ±1 dB, Directivity 18 dB, Average Power 50 W. Tags: Module with Connectors. More details for DCE10S-0.8-2.7 can be seen below.