SanDisk Extreme MicroSDHC 32GB 90MB/S Flash Memory Card (SDSQXNE-032G-AN6MA) Write Speeds Up To 40MB/s Transfer Speeds Up To 90MB/s MicroSDHC 32GB Form Factor Class 10 For Recording Full HD Video (1080p) & UHS Class 3 For Full HD & 4K Ultra HD Video Waterproof, Temperature proof, X-ray proof & Shockproof