The SIM-43LH+ from Mini Circuits is a RF Mixer with RF Frequency 824 to 4200 MHz, LO Frequency 824 to 4200 MHz, IF Frequency DC to 1500 MHz, Conversion Loss 5.7 to 8.6 dB, LO Drive - Power 10 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for SIM-43LH+ can be seen below.