Hoodman Steel is a ruggedized, steel plated SDXC card designed to withstand the rigors of high performance photography/videography. New miniature chip on board technology allows extra room for a reinforced internal housing structure that protects sensitive flash components. The epoxy assembly process adds great strength while also making Hoodman Steel waterproof. Beyond brawn, Hoodman Steel is also fast, coming in at 300MB/s. For optimum reliability and performance, Hoodman Steel is ruggedized and tested right here in the USA.