The SDSDUN4-128G-GN6IN from WD/SanDisk Retail is an advanced 128GB SDXC flash card tailored for users who demand high-speed data transfer and large storage capacity. Equipped with Ultra UHS-I technology and a Class 10 speed rating, it delivers superior read speeds of up to 120MB/s, enabling fast file access and quick transfers. This card is an excellent choice for photographers and videographers aiming to capture high-quality images and 1080p full-HD, 3D, and 4K video. Its ample storage serves well in extensive shooting sessions without the need for frequent card swaps. Additionally, the card's robust build provides protection against water, temperature extremes, x-rays, and shocks, making it a reliable choice for adventurers and professionals working in challenging environments.