Introducing the worlds toughest, fastest SD cards. 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 (1P68), the fastest read speed at up to 300 MB/s and fastest write speed at up to 299 MB/s, the SF-G series TOUGH specification protects professional work. World's toughest SD card SF-G series TOUGH specification cards are designed for dependability. The one-piece molding body with high hardness materials is 18-times more bend resistant than the SD standard, impact resistant for drops up to 16 feet and the highest level dustproof and waterproof (IP68). Fragile parts designed out By designing out the weak parts of conventional SD cards - the ribs and write-protect switch - reliability is vastly improved. This reduces risk of difficulty in recording data if broken. Superior water and dust proofing The fully-sealed one-piece molding meets the highest specifications for both waterproofing and dustproofing. With an IP68 rating, the SF-G series TOUGH specification cards can withstand fine dust, mud, grime and immersion in 16 feet of water for up to 72 hours. Faster Transfer to PC With up to 300 MB/s read speed, you can transfer large files such as 4K video or a bunch of high-resolution images to a PC in seconds. Less time waiting, more time doing.