The SDSQUA4-128G-GN6IA by WD/SanDisk Retail is an ultra-high-capacity 128GB microSDXC (TF) card from the Ultra series, engineered to enhance your digital lifestyle. It's perfect for smartphone and tablet users, photographers, and videographers who need reliable and expansive storage for their high-resolution images, HD videos, and app libraries. This card supports Ultra High-Speed Class 1 (UHS-I) technology, offering accelerated read speeds up to 120MB/s for swift file transfers and efficient multimedia playback. Additionally, it boasts an A1 app performance rating, facilitating quicker app launches and improved performance on mobile devices. The provided adapter extends compatibility to devices requiring a full-sized SD card slot. Designed to withstand harsh conditions, it offers data protection against water, temperature extremes, shock, and x-ray exposure.