The MDS120 from R & K Company Limited is a RF Mixer with LO Frequency 1.4 to 3.2 GHz, IF Frequency DC to 500 MHz, Conversion Loss 7 to 9.5 dB, LO Drive - Power 20 dBm, P1dB 13 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for MDS120 can be seen below.