SanDisk 64GB Extreme Memory Card The SanDisk Extreme SD UHS-I memory card delivers performance that lets you take control of your creativity. With shot speeds of up to 70MB/s and UHS speed Class 3 (U32 recording, youre ready to capture stunning high-resolution, stutter-free 4K UHD video. Its 150MB/s transfer speeds mean you can quickly move your photos where you want them. Plus, its built to withstand weather, water, shocks and other less-than-ideal conditions so you can rest assured that its good to go wherever you go.