Patent ID: 8675366

Claim:
A cascade data storage device, comprising: at least an integrated circuit module wherein the integrated circuit module comprises: a substrate, at least an electronic device, a package body and a USB metal contact wherein the substrate has an inner surface and an outer surface, the electronic device is installed on the inner surface and electrically connected to the USB metal contact of the outer surface; in addition, the package body is used to encase the electronic device; a connecting structure with at least a male connector and at least a female connector that indirectly facilitate two integrated circuit modules to be freely connected and become a cascade structure via the connecting structure; wherein the connecting structure installed on a lateral edge of the package body allows the male connector to couple with the female connector and then the integrated circuit modules freely connected, which are stacked high enough and keep the USB metal contact electrically contact with a USB port of a computer or a USB metal contact of the integrated circuit module electrically connected to a USB port of a computer with the integrated circuit modules having stacked high enough.