The T-5P4M06S-P9M-004 from Shenzhen Superlink Technology is a Between Series RF Adapter with Contact Resistance 2 to 3 mOhms, Frequency DC to 40 GHz, Insertion Loss 0.31 dB, Mating Cycles 500 Cycles, Insulation Resistance 5000 MOhms. More details for T-5P4M06S-P9M-004 can be seen below.
