The MDS510 from R & K Company Limited is a RF Mixer with LO Frequency 5 MHz to 2 GHz, IF Frequency DC to 900 MHz, Conversion Loss 7.5 to 11 dB, LO Drive - Power 20 dBm, P1dB 13 dBm. Tags: Drop-In, Double Balanced Mixer. More details for MDS510 can be seen below.