The QHM-2-4G SQ from Crane Aerospace & Electronics is a Space Qualified Coupler with Frequency 3.6 to 4.4 GHz, Coupling 3 dB, Power 10 W, Amplitude Balance 0.5 dB, Phase Balance ±5 Degrees. Tags: Module with Connectors. More details for QHM-2-4G SQ can be seen below.