SanDisk Extreme microSDXC UHS-I CARDGear that doesnt limit your creativitySave time transferring contentWith SanDisk QuickFlow Technology (64GB - 1TB), this card optimizes performance for timesaving media offloads with quick read speeds up to 190MB/s. Pair with the SanDisk Professional PRO-READER SD and microSD to achieve maximum speeds (sold separately).Write speeds of up to 130MB/sCapture fast-action photos or shoot 4K UHD video with write speeds of up to 130MB/s.The SanDisk Extreme microSDXC UHS-I Card lets you shoot more and faster.Great for capturing 4K UHD VideoIdeal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. With up to 1TB, the SanDisk Extreme microSD UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.Load apps faster with A2Get faster app performance for an outstanding smartphone experience thanks to the SanDisk Extreme microSD cards A2 Specification.Durable design for use in extreme environmentsSanDisk Extreme microSDHC and microSDXC UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof, so you can enjoy your adventures without worrying about the durability of your memory card.SpecificationsCapacity:64GBCard Type: MicroSDX UHS-IClass: AClass: A2Interface: MicroSDTransfer Speed Read: Up to 170MB/s, Write: Up to 80MB/s: Limited LifetimeCompatibility: Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devicesDimensions (L x W x H): 1.02mm x 14.99mm x 10.92mm