It carries 5 contacts rated 1A per contact at 30VAC, with gold-plated contacts that handle the 10000 mating cycles the connector is rated for — that cycle life is well above typical micro USB connectors, which usually spec around 5000 cycles. The USB 2.0 specification covers the signal and power pinout, so this is a standard micro-B plug, not a 3.0 variant. The steel, stainless shell provides basic shielding for the signal pair.
Termination is solder — the five contacts are soldered to the cable conductors, and the shell is soldered to the cable braid for shielding. The free-hanging design means it terminates in-line on a cable, not on a PCB. The black insulation color is standard for USB connectors.