SanDisk cards are compatible with smartphones, tablets, action cameras and drones. Capture fast-action photos or shoot 4K UHD video2 with write speeds of up to 90MB/s*. The SanDisk Extreme PRO microSDXC UHS-I Card lets you shoot more and transfer even faster. Quick read speeds of up to 170MB/s* save you time when transferring high-resolution images and 4K UHD videos.2 Ideal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. With up to 128GB, the SanDisk Extreme PRO 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. SanDisk Extreme PRO microSDHC and microSDXC UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof,4 so you can enjoy your adventures without worrying about the durability of your memory card.