The CSM-30-4.85G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 3.4 to 6.275 GHz, Frequency Sensitivity ±0.75 dB, Coupling 30 dB, Coupling Variation ±1.25 dB, Power 2 W. Tags: Module with Connectors. More details for CSM-30-4.85G SQ can be seen below.