Our Hard Transport Cases are designed to protect Ciphertex storage servers during shipment via common carrier. Ciphertex case’s are engineering-Hi grade. Cell-core construction help to transport and protect your Ciphertex storage server in some of the most extreme conditions on Earth. The polymer o-ring helps seal out dust and water, while the Gore-Tex automatic pressure equalization valve allows air molecules to pass through, preventing “vacuum-lock”. The padlock on the case is mechanically reinforced to bolster security, reduce cutting, and theft.