Yes now you can keep up to 512 GB data in your pocket by a SD memory Card.SanDisk recently announce to marked this card. 4K technology video can be storage in this card(Extreme pro SDXC UH-1). Normally 4K ultra HD format(3840X2160) pixel is four times more then HD format. Data transfer rate of this card is 95 MB/sec. Basically SD cards is used in a Digital camera where more capacity is always expected by people. Now we can storage a lots of picture and videos of our life events. Dinesh Bhal vice presidents of Sandisk is very curious about this new technology. He told that it is just start-up to make a small card where people can keep lots of memory, in future they will make more bigger capacity card. He also told this day technology growing very fast and furiously this card one of example. Now a day bigger file or data not a problems to storage.This card is temperature, water, sock and x-ray resist. This card also available in 256 and 128 format in market.Since 1999 to till now around 400 company is related to manufacture this type of card. Price of this 512 GB card is 799 Dollar.