The CAK-DM-DM from Xiamen HDG Telecom Equipments is a In Series RF Adapter with Frequency DC to 6 GHz, Contact Resistance 1 to 1.5 mOhms, Insulation Resistance 1000 MOhms, Mating Cycles 500 Cycles, PIM -155 dBc. More details for CAK-DM-DM can be seen below.