This .94 cubic foot fire safe is UL classified for 1 hour to withstand an external temperature of 1700 degrees Fahrenheit while maintaining an internal temperature of less than 350 degrees. The safe has been tested by an independent testing lab and verified to protect electronic media including memory sticks, CD’s, DVD’s and external hard drives. In addition, the safe will protect documents, electronics, and other valuables. Concealed hinges are designed to resist prying. Waterproof even when fully submerged.