The MDL300 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 6 to 9.5 dB, LO Drive - Power 7 dBm, IP3 10 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for MDL300 can be seen below.