The M4-0126LK from Marki Microwave is a RF Mixer with RF Frequency 1 to 26.5 GHz, LO Frequency 1 to 26.5 GHz, IF Frequency DC to 700 MHz, Conversion Loss 8 to 13 dB, LO Drive - Power 10 to 13 dBm. Tags: Module with Connectors, Double Balanced Mixer. More details for M4-0126LK can be seen below.