The WD/SanDisk Retail SDSDXEP-128G-GN4IN is an advanced 128GB Extreme PRO SDXC UHS-II Card, engineered to provide professional photographers, videographers, and enthusiasts with top-tier storage and transfer speeds. This card features the UHS-II technology, which allows for read speeds up to 300 MB/s and write speeds up to 260 MB/s, enabling efficient handling of large files such as 4K video, RAW continuous burst photos, and other intensive multimedia files. The 128GB capacity offers ample space for storing hours of video footage and thousands of high-resolution images. Structured to withstand extreme environments, this SD card is temperature-proof, waterproof, shockproof, and X-ray-proof. The SDSDXEP-128G-GN4IN is especially suited for use in high-performance DSLRs, advanced digital cameras, and HD camcorders, providing users with the reliability and speed required for demanding professional workloads.