Contact system and durability
The 629004113921 is the 4-contact USB-A plug member of Würth Elektronik's WR-COM series, rated for 1500 mating cycles with gold-plated contacts.
Position count across the WR-COM USB-A line
Within the WR-COM USB-A family, the 629004113921 plug shares its 4-contact count and 1.5 A rating with the 62900416021 receptacle — the two differ in gender and package (tube vs tray). The 629104151021 and 614104150121 receptacles also match the same contact count, current, and USB 2.0 spec, but ship in tape-and-reel packaging.