The CLD-510-X from Cobham Signal & Control Solutions is a Dual Directional Coupler with Coupling 6 to 30 dB, Frequency 500 MHz to 1 GHz, Average Power 1 W, Insertion Loss 0.4 dB, Directivity 25 dB. Tags: Module with Connectors. More details for CLD-510-X can be seen below.