For a long time now digital cameras, phones and other devices have relied on SD cards for storage. The capacity of normal SD cards topped out at about 4GB and opened the door for SDHC cards with much more storage capacity. The SDHC card is now hitting its capacity limit opening the door for SDXC cards of the future.

The SDXC card can put as much as 2TB of storage inside a tiny card that looks like a SDHC card. The two formats are not compatible because SDXC uses exFAT file system compared to SDHC’s FAT32 file system. Pretec is showing off the first SDXC card at PMA in Vegas this week. The card has 32GB of storage space and has a read/write speed of 50MB/s. In the future read/write speeds will be as high as 300MB/s.