SanDisk Extreme Pro 256GB microSDXC UHS-I, V30, 200MB/s Read, 140MB/s Write, Memory Card for 4K Video on Smartphones, Action Cams and Drones SanDisk Extreme Pro 256GB microSDXC UHS-I, V30, 200MB/s Read, 140MB/s Write, Memory Card for 4K Video on Smartpho

- Capture stunning 4K UHD video - Pair with the SanDisk Professional PRO-READER SD and microSD for speeds up to 200MB/s* (sold separately) [64GB-1TB] - Up to 140MB/s write speeds for fast continuous shots* [256GB-1TB] - Up to 190MB/s read speeds* to save time transferring high-res images and 4K UHD videos - Save time transferring media with SanDisk QuickFlow Technology - Get the SanDisk Memory Zone app for easy file management