The HMC128 from Analog Devices is a RF Mixer with RF Frequency 1.8 to 5 GHz, LO Frequency 1.8 to 5.0 GHz, IF Frequency DC to 3 GHz, Conversion Loss 8 dB, LO Drive - Power 15 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for HMC128 can be seen below.