provided are a pin module and a universal serial bus device . the usb device includes : a substrate including a first side and a second side , the second side opposite to the first side ; at least one memory chip mounted on the first side of the substrate ; at least one controller chip mounted on the first side of the substrate ; a plurality of first planar electrodes formed on the second side of the substrate ; a plurality of second planar electrodes formed on the second side of the substrate ; and a sealing material housing the memory chip , the controller chip , the first planar electrodes , and the second planar electrodes , wherein the sealing material exposes one sides of the first planar electrodes and the second planar electrodes .