The MX040-1S from R & K Company Limited is a RF Mixer with LO Frequency 0.002 to 50 MHz, IF Frequency DC to 50 MHz, Conversion Loss 4.5 to 12 dB, LO Drive - Power 20 dBm, P1dB 14 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MX040-1S can be seen below.