The X2L-03-411 from Pulsar Microwave is a RF Mixer with LO Frequency 0.1 to 500 MHz, IF Frequency DC to 500 MHz, Conversion Loss 7.5 dB, LO Drive - Power 7 dBm, P1dB 1 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for X2L-03-411 can be seen below.