Sandisk Extreme Memory Pro Card 256GB

"Shot speeds up to 90MB/s; transfer speeds up to 95 MB/s Engineered to capture 4K Ultra High Definition UHS Speed Class 3 (U3) Built for and tested in harsh conditions; temperature proof, water proof, shock proof, and x ray proof Security: Built in write protect switch prevents accidental data loss Operating temperature: -13F to 185F (-25C to 85 C) Storage temperature: -40F to 185F (-40C to 85C) Added Protection: 1 year downloadable RescuePro data recovery software offer, for bringing accidentally deleted images back to life"