The MX250-0S from R & K Company Limited is a RF Mixer with LO Frequency 0.2 MHz to 3 GHz, IF Frequency 0.1 MHz to 1 GHz, Conversion Loss 6.5 to 10 dB, LO Drive - Power 10 dBm, P1dB 6 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for MX250-0S can be seen below.