The Lexar Professional 1667x SDXC UHS-II memory cards are designed for professional photographers and videographers. They offer high-speed performance with up to 250MB/s read speed, allowing for seamless video recording and fast burst photography. These cards leverage UHS-II technology to deliver exceptional speed, making them ideal for capturing 1080p Full-HD, 3D, and 4K video. This twin pack includes two 128GB SDXC cards, ensuring you have ample storage for your creative projects. The cards are backward compatible with UHS-I devices, operating at UHS-I speeds, and come with a limited lifetime warranty. They are perfect for content creators needing an accelerated workflow and reliable performance for high-quality photo and video capture.