Universal serial bus socket

An universal serial bus (USB) socket, comprising:

• a shell, disposed on a planar surface, being formed with a first surface and a second surface at positions corresponding to each other while having a slot formed thereon with a length extending in an extending direction forming a first included angle with respect to the planar surface;
• an USB connector, being arranged inside the slot while allowing an USB jack of the USB connector to expose outside the first surface of the shell so as to be provided for an USB plug to plug in;
• a seat, disposed on the second surface of the shell for allowing the slot to be formed thereat while being formed with a recess provided for the USB connector to be received therein;
• and
• a cap, mounted on the second surface at a position corresponding to the seat so as to be mated therewith and thus to be used for fixing the USB connector to the slot of the seat;
• wherein, the first included angle is not equal to 90 degrees;
• and the USB plug is arranged to plug into the USB jack in a plug-in direction that forms a second included angle with respect to the planar surface while allowing the second included angle to be not equal to 90 degrees;
• and there is at least one first coupler being arranged on each of two side walls of the recess, and correspondingly, each of two side walls of the USB connector is formed with at least one second couplers in an amount equal to the first couplers that are arranged on its corresponding side walls and at positions corresponding thereto, and thus, by coupling the first couplers of the recess to their corresponding second couplers of the USB connector, the USB connector is fixedly inset inside the slot.