The M2640LWR28 from Narda-MITEQ is a RF Mixer with RF Frequency 26000 to 40000 MHz, LO Frequency 26000 to 40000 MHz, IF Frequency 0 to 8000 MHz, Conversion Loss 10.5 dB, Noise Figure 10.5 dB. Tags: Module with Connectors. More details for M2640LWR28 can be seen below.