SanDisk Extreme® 256GB microSDXC UHS-I, 190MB/s Read, 130MB/s Write Memory Card for 4K Video on Smartphones, Action Cams and Drones SanDisk Extreme® 256GB microSDXC UHS-I, 190MB/s Read, 130MB/s Write Memory Card for 4K Video on Smartphones, Action Cams a

- Capture stunning 4K UHD video - Pair with the SanDisk Professional PRO-READER SD and microSD for speeds up to 190MB/s* (sold separately) [128GB-1TB] - Up to 130MB/s write speeds for fast shooting - Upto 190MB/S Read Speed - Shock-, temperature-, water-, and X-ray-proof - Manage files with the SanDisk Memory Zone app6