The 27005-40 from Narda-MITEQ is a Directional Coupler with Frequency 2 to 8 GHz, Coupling 40 dB, Coupling Variation ±1.0 dB, Frequency Sensitivity ±0.5 dB, Directivity 16 dB. Tags: Module with Connectors. More details for 27005-40 can be seen below.