The Transcend 16GB 300X Compact Flash Card is the fastest flash card out on the market. To meet the demanding requirements of high-end digital photography, the 300x CF card operates in dual-channel Ultra DMA mode 5, which is the fastest available amongst other compact flash memory cards. For glitch-free data communication and protection from data corruption or missing files, 300X CF cards are equipped with an advanced ECC (Error Correction Code) that automatically detects and corrects errors during data transfer. On top of that, an average transfer rate of 45MB/sec can be achieved for superior performance.