The 5MAF06S-MXM-003 from Shenzhen Superlink Technology is a Between Series RF Adapter with Contact Resistance 1 to 6 mOhms, Frequency DC to 6 GHz, Insertion Loss 0.12 dB, Mating Cycles 500 Cycles, Insulation Resistance 5000 MOhms. More details for 5MAF06S-MXM-003 can be seen below.