The SDSQUAR-400G-ZN3MN microSDXC card by WD/SanDisk Retail sets a new standard for high-capacity, high-performance portable storage. With 400GB of space, this microSD card offers one of the most generous storage capacities available, making it an excellent choice for smartphone and tablet users, photographers, and videographers who require extensive storage for their high-resolution files. It features a C10 U1 A1 speed rating and achieves impressive read speeds of up to 100MB/s, ensuring efficient file access and transfer. This card is especially well-suited for A1-rated app performance, enabling faster app loading and smoother performance on mobile devices. Included with an adapter, it offers versatility and compatibility with a wide range of SD-card-enabled devices, including cameras and computers. Robust and reliable, the SDSQUAR-400G-ZN3MN is built to withstand challenging environments, making it a trustworthy choice for capturing and storing valuable data on the go.