The DA0204LR5 from Narda-MITEQ is a RF Mixer with RF Frequency 2000 to 4000 MHz, LO Frequency 2000 to 4000 MHz, IF Frequency 10 to 250 MHz, Conversion Gain 23 dB, Noise Figure 9.5 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DA0204LR5 can be seen below.