The CDS10E-380/2700 from Radio Frequency Systems is a Directional Coupler with Frequency 380 MHz to 2.7 GHz, Coupling 10 dB, Coupling Variation ±1.4 dB, Directivity 18 to 20 dB, Power 200 W. Tags: Module with Connectors. More details for CDS10E-380/2700 can be seen below.