To permit scaling or rotation of an image to be discernedeven if the original image is not availablecertain marker signals are steganographically encoded in the image. The vacuum chambers and bio processor are connected with each other to form an environment with a pressure lower than atmospheric pressure, and the bio sample moves toward the second vacuum chamber due to the pressure difference created by the injection of the bio sample into the first vacuum chamber. A visual pattern may be used to indicate the variegated structure. The first hinge portion comprises a pair of longitudinal grooves formed into the first hinge portion and extending parallel to the first longitudinal edge of the base portion, with a web defined between the longitudinal grooves, and a hinge-reinforcement wall at at least one end of the longitudinal grooves. The socket comprises a first connection unit configured to be electrically connected to the first connection terminals of the test object and a second connection unit configured to be electrically connected to the second connection terminals of the test object. The NVMe controller exports and presents the remote storage devices to one or more VMs running on a host attached to the NVMe controller as the NVMe namespace, wherein these remote storage devices appear virtually as one or more logical volumes of a collection of logical blocks in the NVMe namespace to the VMs.