The DM0520MW1 from Narda-MITEQ is a RF Mixer with RF Frequency 5000 to 20000 MHz, LO Frequency 5000 to 20000 MHz, IF Frequency 0 to 7000 MHz, Conversion Loss 7 dB, Noise Figure 9 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DM0520MW1 can be seen below.