The MX450-1S from R & K Company Limited is a RF Mixer with LO Frequency 100 Hz to 20 MHz, IF Frequency DC to 20 MHz, Conversion Loss 6 to 8 dB, LO Drive - Power 7 dBm, IP3 13 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MX450-1S can be seen below.