The M1-0412ME-1 from Marki Microwave is a RF Mixer with RF Frequency 4 to 12 GHz, LO Frequency 4 to 12 GHz, IF Frequency DC to 4000 MHz, Conversion Loss 5 to 8.5 dB, LO Drive - Power 10 to 13 dBm. Tags: Microstrip, Double Balanced Mixer. More details for M1-0412ME-1 can be seen below.