The 28WMT_Cu_PM4_IP65 from A-Info is a Waveguide Tee with Frequency 26.5 to 40 GHz, Isolation 30 to 40 dB, Insertion Loss 0.6 to 1 dB, Operating Temperature -55 to 85 Degree C, Storage Temperature -60 to 90 Degree C. Tags: Magic Tee. More details for 28WMT_Cu_PM4_IP65 can be seen below.