The DC4002000800GA from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2 to 8 GHz, Coupling 40 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±1 dB, Directivity 15 to 18 dB. Tags: Module with Connectors. More details for DC4002000800GA can be seen below.