The DB0418HW1 from Narda-MITEQ is a RF Mixer with RF Frequency 4000 to 18000 MHz, LO Frequency 4000 to 18000 MHz, IF Frequency 0 to 2000 MHz, Conversion Loss 7.5 dB, LO Drive - Power 20 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DB0418HW1 can be seen below.