The M55339/28-30001 from Fairview Microwave is a In Series RF Adapter with Frequency DC to 12.4 GHz, Insertion Loss 0.05 dB, Insulation Resistance 5000 Mohms, Mating Cycles 500 Cycles, Temperature -65 to 200 Degree C. More details for M55339/28-30001 can be seen below.