The HMC128G8 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 2 GHz, Conversion Loss 10 dB, LO Drive - Power 15 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for HMC128G8 can be seen below.