The 64GB SF-M Tough Series UHS-II SDXC Memory Card from Sony features a storage capacity of 64GB and takes advantage of the UHS-II bus to support advanced DSLR functions such as continuous shutter bursts and rapid shooting, as well as raw and JPEG captures. This card is also well-suited for video capture, including 4K, Full HD, and 3D video. It can achieve maximum read speeds of up to 277 MB/s and maximum write speeds of up to 150 MB/s. Thanks to its V60 speed class rating, minimum write speeds are guaranteed not to drop below 60 MB/s. To help facilitate card usage in almost any environment, as well as keeping your content safe, Sony has built the Tough Series with a rugged design that can withstand drops up to 16.4' / 5m, immersion in up to 16.4' / 5m of water for up to 72 hours, and is bend and dust proof, as well as able to withstand temperature extremes from -13 to 185°F. The Tough Series is also up to 18 times stronger than standard SD media (180N compared to 10N) and features a one-piece molded construction that is ribless with no write protect switch, helping to further guard against physical damage that can affect SD cards, such as a broken plastic casing, a broken data protection lock, and broken connector ribs. Should the card's data become compromised, you also benefit from the option to download File Rescue software for free to help recover deleted content. UHS-II media achieves its speed through an extra row of pins and while this card has been designed for cameras that are UHS-II / V60 compatible, it may be used in devices that do not support UHS-II / V60. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-II and V30, which supports minimum write speeds of 30 MB/s, or UHS-I and U3, which also supports minimum write speeds of 30 MB/s. If your device does not support U3, this card is compatible with the U1 and Class 10 standards, each of which guarantees minimum write speeds of 10 MB/s. When used in a UHS-I device, this card delivers read speeds of up to 95 MB/s and write speeds of up to 90 MB/s.