The new Xs type I memory cards with 128MB, 256MB, 512MB and 1GB capacity (standard thickness compatible with digital cameras using CompactFlash cards) equipped with NAND technology are now available. As their name implies, these cards are fast enough to allow all professional and amateur photographers to take instant shots since the cards can write data at 22X. In the same way, these cards will enable written date to be read at a transfer rate of 45X. Other speeds will become available as Flash technology evolves