The DB0250LW1 from Narda-MITEQ is a RF Mixer with RF Frequency 2 to 50 GHz, LO Frequency 2 to 50 GHz, IF Frequency DC to 2 GHz, Conversion Loss 10 to 15 dB, Noise Figure 15 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DB0250LW1 can be seen below.