The MDS620 from R & K Company Limited is a RF Mixer with LO Frequency 1 MHz to 2.5 GHz, IF Frequency DC to 1 GHz, Conversion Loss 6 to 9 dB, LO Drive - Power 23 dBm, P1dB 14 dBm. Tags: Drop-In, Double Balanced Mixer. More details for MDS620 can be seen below.