The DC5002020212GN from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2.025 to 2.125 GHz, Coupling 50 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.5 dB, Directivity 20 dB. Tags: Module with Connectors. More details for DC5002020212GN can be seen below.