The TLHM-640680-02-1.5 from Talent Microwave Inc is a Waveguide Mixer with RF Frequency 640 to 680 GHz, LO Frequency 320 to 340 GHz, Conversion Loss 8 dB. Tags: Harmonic Mixer, Sub-Harmonic Mixer. More details for TLHM-640680-02-1.5 can be seen below.