The TB0418MW1-R from Narda-MITEQ is a RF Mixer with RF Frequency 4000 to 18000 MHz, LO Frequency 4000 to 18000 MHz, IF Frequency 500 to 8000 MHz, Conversion Loss 9.5 dB, Noise Figure 13 dB. Tags: Module with Connectors, Triple Balanced Mixer. More details for TB0418MW1-R can be seen below.