The IQ-0255 from Marki Microwave is a RF Mixer with RF Frequency 2 to 5.5 GHz, LO Frequency 2 to 5.5 GHz, IF Frequency DC to 500 MHz, Image Rejection 23 dB, Conversion Loss 5.5 dB. Tags: Module with Connectors, I/Q Mixer. More details for IQ-0255 can be seen below.