The CP200408A-20 from Amtery is a Bi-Directional Coupler with Frequency 0.4 to 8 GHz, Coupling 19 to 21 dB(Forward), 19.5 to 21.6 dB(Reverse), Power 30 W, Insertion Loss 0.9 to 1.1 dB, Directivity 21 to 26 dB(Forward), 19 to 24 dB(Reverse). Tags: Module with Connectors. More details for CP200408A-20 can be seen below.