The HMC558 from Analog Devices is a RF Mixer with RF Frequency 5.5 to 14 GHz, LO Frequency 10.0 to 14.0 GHz, IF Frequency DC to 6 GHz, Conversion Loss 7 dB, LO Drive - Power 15 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for HMC558 can be seen below.