SanDisk Extreme Pro Micro SD 256GB 200MB/s Experience extreme speeds with the SanDisk Extreme PRO microSDXC 256GB 200MB/s Memory Card, designed for fast transfers, app performance, and 4K UHD video recording. Ideal for Android smartphones, action cameras, or drones, this high-performance card supports 4K UHD video, Full HD video, and high-resolution photos. It achieves impressive read speeds up to 200MB/s and write speeds up to 140MB/s. Additionally, it's A2-rated, ensuring fast application performance for an exceptional smartphone experience. Improve Your Workflow Efficiency With SanDisk QuickFlow Technology, this card optimizes performance for timesaving media offloads with quick read speeds up to 200MB/s (64GB - 1TB). Pair with the SanDisk Professional PRO-READER SD and microSD.