The IRM0204LC2B from Narda-MITEQ is a RF Mixer with RF Frequency 2000 to 4000 MHz, LO Frequency 2000 to 4000 MHz, IF Frequency 40 to 80 MHz, Image Rejection 18 dB, Conversion Loss 6 dB. Tags: Module with Connectors, Single Balanced Mixer. More details for IRM0204LC2B can be seen below.