The DC1306004000GH from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 6 to 40 GHz, Coupling 13 dB, Coupling Variation ±0.6 to ±0.9 dB(Accuracy), Frequency Sensitivity ±0.4 to ±0.8 dB, Directivity 11 to 14 dB. Tags: Module with Connectors. More details for DC1306004000GH can be seen below.