The AT36-5063-W-LP from Aaren Technology Ltd is a Between Series RF Adapter with PIM -168 to -165 dBc, Contact Resistance 0.4 mOhms(Inner), 1.5 mOhms (Outer), Frequency DC to 6 GHz, Insertion Loss 0.1 dB, Mating Cycles 500 Cycles. More details for AT36-5063-W-LP can be seen below.