http://www.blogcdn.com/www.engadget.com/media/2013/11/sdxc-uhs-3_thumbnail.jpg
Outside of a few smartphones, 4K video capture has largely been limited to pro-level hardware; the SD cards in regular cameras frequently can’t handle so many pixels at once. That won’t be a problem in the near future, as the SD Association has just unveiled an Ultra High Speed Class 3 (U3) card …