The M6.9-44 from Spacek Labs is a RF Mixer with RF Frequency 43.5-45.5 GHz, LO Frequency 9.3-9.5 GHz, IF Frequency 6.4-7.4 GHz, Conversion Loss 6.0 / 8.0 dB. Tags: Module with Connectors, Single Balanced Mixer, Single Sideband Mixer, Up-Conversion Mixer, Image Reject Mixer. More details for M6.9-44 can be seen below.