xD Picture memory (for eXtreme Digital) is a type of memory card created by
The architecture of xD cards is based on NAND type flash memory circuits (EEPROM)
xD picture card memory is smaller in size than a postal stamp (20.0mm x 25.0mm x 1.7mm) and weighs barely 2 grams.
Access to the data is carried out via a lateral connector with 18 pins, allowing a transfer rate of 1.3 Mb/s to be reached and potentially up to 3Mb/s for writing and around 5 Mb/s for reading.
In time it is expected that xD picture cards will reach a capacity of 8Gb.
