4A USB charging capacity; For use in residential applications; Vertically positioned USB ports allow for more flexibility & reduce stress on USB cables; Two 15A/125V tamper-resistant receptacles; Fits in a standard wallbox, is compatible with standard wallplates & can be multiganged with other devices; Designed to easily replace existing outlets; Compatible with USB 2.0 devices; Fits in most major manufacturers decor-style wallplates; ETL listed;