The MMB1521Q35H from Meuro Microwave is a RF Mixer with RF Frequency 15000 to 21000 MHz, LO Frequency 15000 to 21000 MHz, IF Frequency DC to 3500 MHz, Image Rejection 25 dBc, Conversion Loss 8 dB. Tags: Drop-In, Module with Connectors, I/Q Mixer, Passive Mixer. More details for MMB1521Q35H can be seen below.