The IR-4509MXP-2 from Marki Microwave is a RF Mixer with RF Frequency 4.5 to 9 GHz, LO Frequency 4.5 to 9 GHz, IF Frequency 50 to 90 MHz, Image Rejection 15 to 23 dB, Conversion Loss 5.5 to 8 dB. Tags: Module with Connectors, Image Reject Mixer, Double Balanced Mixer, Down-Conversion Mixer. More details for IR-4509MXP-2 can be seen below.