The HJK-372H+ from Mini Circuits is a RF Mixer with RF Frequency 420 to 3730 MHz, LO Frequency 610 to 3920 MHZ, IF Frequency 100 to 600 MHz, Conversion Loss 7.5 to 9.2 dB, LO Drive - Power 17 to 19 dBm. Tags: Surface Mount, Triple Balanced Mixer. More details for HJK-372H+ can be seen below.