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Capacity 512 GB Compatibility Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices Dimensions (L x W x H) 10.92mm x 14.99mm x 1.02mm Sequential Read Performance Up to 200MB/s Sequential Write Performance Up to 140MB/s Get extreme speeds from a microSDXC™ memory card for fast transfer, app performance, and 4K UHD. Ideal for your Android™ smartphone, action cameras or drones, this high-performance Extreme Pro microSD SDXC card does 4K UHD video recording, Full HD video, and high-resolution photos. Super-fast SanDisk Extreme PRO microSDXC™ memory card achieves read speeds up to 200MB/s and writes up to 140MB/s. Plus, it’s A2-rated, so you can get fast application performance for an exceptional smartphone experience.