Thanks to the huge advances in memory technology, today SDXC or microSDXC cards are available at 1 terabyte, a ~125,000 times capacity increase over the first SD memory cards.

The many symbols, numbers, and letters that cover an SD card are evidence of that. Each one represents a different standard that's improved since SD cards were invented.

However, with the new SD Specification 5.1, a card such as this might be able to be certified as supporting a new 'App Performance Class' or bear an 'A1' symbol for short - so Kingston would be ...