The X1M-11-301 from Pulsar Microwave is a RF Mixer with LO Frequency 5 MHz to 4.2 GHz, IF Frequency 5 MHz to 2 GHz, Conversion Loss 10 dB, LO Drive - Power 17 dBm, P1dB 10 dBm. Tags: Surface Mount, Triple Balanced Mixer. More details for X1M-11-301 can be seen below.