The letter size file cabinet features top quality steel construction and it has a 1-hour class 350 fire rating, 30 ft. UL impact rating, and a 30 minute ETL fire rating for digital media. It has been tested against 1 hour of exterior fire exposure at 1700ºF, a 2000ºF explosion, and a 30 FT drop. It's available in different sizes, colors, and it's backed by a limited lifetime warranty.