A server includes a chassis, a protecting component and at least one power supply. The chassis includes a case, a cover and a lid. The cover is disposed on the case to form at least one accommodating space, and the lid is detachably disposed on the case and covers the cover. The protecting component is assembled on the cover and includes a pressed sheet spring and a first blocking sheet spring. Both the pressed sheet spring and the first blocking sheet spring includes a bending section, and the bending sections are separated apart. The two sheet springs are fastened to the cover to form a fastening part, and the two sheet springs are connected to each other to form a movable part. The two sheet springs move simultaneously when the movable part is moved relative to the cover. The power supply is removably disposed in the accommodating space.