... DC Jack USB I/O Board 48.4X809.011 You buy our products ,we provide u goods ... 2) Refund is for the product price only 3) Handling, postage and shipping charges are not refundable ... 2)check whether lack of electronic insulation gummed paper.3) check whether lack of fittings, rust, rot, ... Mouse,Keyboard, Dial, USB, SD connector, PC, 3.3V COMS battery, Battery whether charge and discharge,Full running ...