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The M43-4 from Spacek Labs is a RF Mixer with RF Frequency 43-43.5 GHz, IF Frequency 3.7-4.2 GHz, LO Frequency 39.3 GHz, Conversion Loss 5.0 / 6.0 dB. Tags: Down-Conversion Mixer. More details for M43-4 can be seen below.
Triple Balanced Surface Mount Mixer from 1 to 3500 MHz
You can now find similar products from multiple companies on everything RF.