Overview This ProMaster 256GB Rugged UHS-1 SDXC memory card provides the ultimate combination of performance and durability, with industrial-grade components that offer protection against water, weather, and impact. Tough and fast, ProMaster Rugged Cards are designed to keep your work and memories safe! Their molded design is the result of a unique manufacturing process making the cards up to 3 times stronger than normal memory cards. Industrial grade internal components offer maximum protection against water, high humidity, extreme heat and cold, and impact. The lock switch and thin plastic ribs typically found on standard SD Cards have been removed to offer additional protection against physical failure. Additionally, Rugged SD Cards come in a bright red color that is easy to spot if dropped.