The 5MAF06S-UFM-020 from Shenzhen Superlink Technology is a Between Series RF Adapter with Contact Resistance 5 to 10 mOhms, Frequency DC to 6 GHz, Insertion Loss 0.3 to 0.4 dB, Mating Cycles 500 to 10000 Cycles, Insulation Resistance 1000 Mohms. More details for 5MAF06S-UFM-020 can be seen below.