Sony 64GB UHS-II Tough G-Series SD Card with Rechargeable Battery Pack BundleSony 64GB UHS II Tough G Series SD Card Designed for professionals who shoot in extreme conditions and require the highest performance. With bend resistance that's 18 times greater than the SD standard, the highest level waterproof and dustproof grades (IP68), the fastest read speed at up to 300 MB s, and the fastest write speed at up to 299 MB s, the SF G series TOUGH specification protects professional work. Fast File Transfer Take burst shooting