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 records 4K UHD video, Full HD video and high-resolution photos. The super-fast SanDisk Extreme PRO microSDXC memory card achieves read speeds of up to 200MB/s and writes up to 90MB/s. Plus, it's A2 rated, so you can get fast app performance for an exceptional smartphone experience. Specifications: Capacity: 64 GB Compatibility: Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I compatible host devices