The 1.0/1.85-KKG-2 from Talent Microwave Inc is a Between Series RF Adapter with Frequency DC to 67 GHz, Insertion Loss 0 to 0.41 dB, Insulation Resistance 5000 MOhms, Temperature -55 to 165 Degree C, Voltage Rating 1000 V. More details for 1.0/1.85-KKG-2 can be seen below.