The QAQSQS from Qualwave is a In Series RF Adapter with Frequency DC to 18 GHz, Contact Resistance 2.5 mOhms (Outer) / 3 mOhms (Center), Insertion Loss 0.04 dB, Mating Cycles 500 Cycles, Voltage Rating 1000 V (RMS). More details for QAQSQS can be seen below.