The 28K101-40ML5-NM from Rosenberger is a RF Connector with Frequency DC to 18 GHz, Operating Temperature -40 to 85 Degree C, Return Loss 22 to 28 dB, Storage Temperature -40 to 85 Degree C, Voltage Rating 1000 V. Tags: Non Magnetic. More details for 28K101-40ML5-NM can be seen below.