The 147-0901-901 from Cinch Connectivity Solutions is a In Series RF Adapter with Frequency DC to 50 GHz, Contact Resistance 4 Mohms (Center Contact), 2.5 Mohms (Outer Contact), Insertion Loss 0.35 dB, Insulation Resistance 5000 Mohms, Mating Cycles 500 Cycles. More details for 147-0901-901 can be seen below.