-LEXAR High Speed COMPACT FLASH CARD -Capacity ranging from 64MB to 4GB. -Orignality guaranteed -CompactFlash is based on flash memory semiconductor technology. Data, audio, video and images are stored on flash chips rather than the conventional, mechanical, rotating disk drives found in most computers. Flash is non-volatile memory, meaning that once data is saved on the card, it will be retained even if the system's power supply is switched off. Flash is also solid state and has no moving parts.