The AD31712-N02-001 from ENS Microwave is a Between Series RF Adapter with PIM 168 dBc, Connector Length 35 mm, Contact Resistance 0.4 to 0.8 mOhms, Frequency DC to 6 GHz, Insertion Loss 0.10 to 0.12 dB. More details for AD31712-N02-001 can be seen below.