The DM0052MA2 from Narda-MITEQ is a RF Mixer with RF Frequency 500 to 2000 MHz, LO Frequency 500 to 2000 MHz, IF Frequency 0 to 500 MHz, Conversion Loss 7.5 dB, Noise Figure 8.5 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DM0052MA2 can be seen below.