Abstract: A charging/discharging device having at least one concealed universal serial bus (USB) plug has a housing having at least one plug hoe, and at least one retractable plug assembly mounted in the housing. Each of the at least one retractable plug assembly has a slidable second circuit board, a resilient element pushing the second circuit board toward a corresponding one of the plug hole of the housing, a USB plug mounted on the second circuit board and corresponding to the corresponding plug hole of the housing, and a locker mounted through and selectively engaging the second circuit board to prevent the second circuit board from sliding when the USB plug is stored in or protrudes out of the housing. Therefore, since the USB plug is able to be concealed in the housing, the USB plug is not damaged.

Abstract: A charging/discharging device having at least one concealed universal serial bus (USB) plug has a housing having at least one plug hoe, and at least one retractable plug assembly mounted in the housing. Each of the at least one retractable plug assembly has a slidable second circuit board, a resilient element pushing the second circuit board toward a corresponding one of the plug hole of the housing, a USB plug mounted on the second circuit board and corresponding to the corresponding plug hole of the housing, and a locker mounted through and selectively engaging the second circuit board to prevent the second circuit board from sliding when the USB plug is stored in or protrudes out of the housing. Therefore, since the USB plug is able to be concealed in the housing, the USB plug is not damaged.