The MX340-1S from R & K Company Limited is a RF Mixer with LO Frequency 1.3 to 3.6 GHz, IF Frequency DC to 800 MHz, Conversion Loss 6.5 to 12.5 dB, LO Drive - Power 10 dBm, P1dB 9 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MX340-1S can be seen below.