The SDSDQUA-128G microSDXC (TransFlash) card by WD/SanDisk Bulk represents a foundational storage solution for those requiring extra space with reliable performance. With 128GB of storage, this card provides substantial capacity for digital content, including photos, videos, and apps, on devices such as smartphones, tablets, and digital cameras. Classified as Ultra with a Class 10 (C10) speed rating, it integrates UHS-I technology to assure a base write speed of 10MB/s, while capable of achieving read speeds up to 30MB/s. This entry-level speed facilitates smoother HD video playback and adequate transfer rates for a wide array of data. Primarily targeted towards bulk purchasers, this model offers the trusted durability and efficiency expected from a WD/SanDisk product, making it an optimal choice for everyday storage needs.