The DB0218LW2-R from Narda-MITEQ is a RF Mixer with RF Frequency 2000 to 18000 MHz, LO Frequency 2000 to 18000 MHz, IF Frequency 0 to 750 MHz, Conversion Loss 6.5 dB, Noise Figure 7 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DB0218LW2-R can be seen below.