The CC-*-850-100 from RLC Electronics is a Dual Directional Coupler with Coupling 6 to 50 dB, Coupling Variation ±0.5 to 1.5 dB, Frequency 800 to 900 MHz, Average Power 500 W, Insertion Loss 0.20 dB. Tags: Module with Connectors. More details for CC-*-850-100 can be seen below.