The AT36-5163-W-LP from Aaren Technology Ltd is a Between Series RF Adapter with PIM -165 to -168 dBc, Contact Resistance 0.4 to 1.5 mOhms, Frequency DC to 6 GHz, Insertion Loss 0.1 dB, Mating Cycles 500 Cycles. More details for AT36-5163-W-LP can be seen below.