Board-Edge USB-A Receptacle for USB 2.0
It carries 4 contacts rated 1A per contact at 30VAC, which is the standard power delivery for USB 2.0 peripherals — enough for charging and data sync, but not the higher current of USB 3.0 or USB-C PD. The shielded shell, made from steel or stainless steel, contains EMI from the differential data pair, keeping the signal clean inside a metal enclosure.
What the 1500 Mating Cycles Mean for Field Life
For a product that stays plugged in for months at a time, the cycle life is generous; for a daily-use consumer device, it still outlasts many standard USB ports. The contact plating grade, not the headline current, is what governs the real duty here — gold flash supports the cycle count, while tin would fret and oxidize sooner.