Just as Sony hits the “world’s fastest” mark with their new SF-G Series UHS-II cards, the SD Association comes along and moves the goalposts. Well, this card is almost at the theoretical 312MB/sec limit of the UHS-II specification. The SD Card Association have now announced the new UHS-III specification, which doubles this limit to 624MB/sec.
With cards ever expanding in size due to the demands of today’s gear, the speed has to also increase. Even if that increase really only benefits the speed at which you can back everything up to your computer. Of course, there will be real world benefits. Now that the megapixel wars seem to have shifted from stills to video, the SDA specifically cite 8K footage as one of their considerations.