The MX220-1S from R & K Company Limited is a RF Mixer with LO Frequency 500 MHz to 2 GHz, IF Frequency DC to 1 GHz, Conversion Loss 6 to 11 dB, LO Drive - Power 10 dBm, P1dB 5 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MX220-1S can be seen below.