The DB0250HW1V from Narda-MITEQ is a RF Mixer with RF Frequency 2000 to 50000 MHz, LO Frequency 2000 to 50000 MHz, IF Frequency 0 to 2000 MHz, Conversion Loss 11 dB, Noise Figure 15 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DB0250HW1V can be seen below.