Samsung 64GB PRO Class 10 Full-Sized SDXC Card up to 90MB/s (MB-SG64E/AM) Full Sized Memory Card with Up to 90MB/s Read and 80MB/s Write speed with Class 10 and U3 compatibility Great Performance in Action Cameras, DSLRs, High-End Smartphones and Tablet PCs Ideal for 4K content, Full HD Video recording and high resolution pictures, Water Proof, Shock Proof, Magnet Proof, Temperature Proof, X-Ray proof Compatible with devices with SDHC and SDXC slots