Patent ID: 8081483

Claim:
A USB flash disk comprising: a metallic housing having a front opening and a rear opening, further having a pair of indentations provided on its bottom surface near said front opening; a printed circuit board having at least a USB interface circuit and an integrated packing circuit with a memory function, said USB interface circuit is provided in front of said integrated packing circuit; a metallic tray provided above said printed circuit board to be supported on whole of a top of said printed circuit board; an insulation lower seat connected with said metallic tray, and provided with a thinner front section and a thicker rear section, said front section envelops outer surfaces of said integrated packing circuit of said printed circuit board, while said rear section extends over a rear edge of said printed circuit board; a clamping strip unit having a connecting portion connecting with said insulation lower seat, and a bended clamping strip extending on a surface of said metallic housing; said printed circuit board is enveloped with said metallic tray and said insulation lower seat, and is fixedly mounted in said metallic housing, said USB interface circuit is allocated on a bottom surface in said front opening and leaves a space between it and a bottom surface, while said rear opening is closed with said rear section of said insulation lower seat.