The MDH300 from R & K Company Limited is a RF Mixer with LO Frequency 2 to 5 GHz, IF Frequency DC to 2.5 GHz, Conversion Loss 5.5 to 9.5 dB, LO Drive - Power 15 dBm, P1dB 9 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for MDH300 can be seen below.