The DC1002004000GH from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2 to 40 GHz, Coupling 10 dB, Coupling Variation ±0.3 to ±0.5 dB (Accuracy), Frequency Sensitivity ±0.8 to ±1.0 dB, Directivity 11 to 12 dB. Tags: Module with Connectors. More details for DC1002004000GH can be seen below.