Greatusb Industry Limited is making technology your own. Since 2003, we have been specialising in on-demand manufacturing of usb flash drive, Professional USB. Customers: We believe in creating customer loyalty by providing a superior product and a superior service. We are committed to a vertical business model which gives us more control and flexibility in almost every area of our business, notably sales, processing and direct fulfilment. Our goal is to continue to outperform the competition with product innovation, fast delivery times and fantastic value.