The MX120-1S from R & K Company Limited is a RF Mixer with LO Frequency 0.05 to 300 MHz, IF Frequency DC to 300 MHz, Conversion Loss 5.5 to 11 dB, LO Drive - Power 20 dBm, P1dB 14 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MX120-1S can be seen below.