CAPTURE EVERY MOMENT - With a generous 256GB capacity, these cards provide ample space for high-resolution photos and 4K UHD video, ensuring you never miss a shot, delivered in a convenient 2-pack. BLAZING FAST SPEEDS - Experience rapid file transfers with up to 300MB/s read and 260MB/s write speeds, thanks to UHS-II technology, dramatically improving your workflow efficiency. UNINTERRUPTED 4K VIDEO - V90 video speed class guarantees smooth, continuous 4K UHD recording without dropped frames, perfect for professional videographers and content creators demanding reliability. BUILT FOR EXTREME CONDITIONS - Designed to withstand temperatures from 32°F to 158°F, these durable SDXC cards ensure your data remains safe in challenging environments, offering peace of mind.