The 64GB SanDisk SDXC Ultra Class 10 UHS-1 Memory Card is a Secure Digital Extended Capacity memory card. With 64GB of data storage capacity, the card provides ample space for photos and videos captured with your camera. It offers an SD Class 10 rating along with an Ultra High Speed Class 1 rating, featuring read speeds up to 40MB/s and write speeds of at least 10MB/s. A built-in write-protect switch prevents data from being accidentally modified, overwritten or deleted. Additionally, the card is built to withstand up to 72 hr in 3.3' of salt or fresh water, and is also shockproof and immune to X-rays. The card supports English, Spanish, French and Portuguese languages, and is backed by a lifetime limited warranty (10 years in Germany, Canada, and regions that do not recognize lifetime warranties).