The CompactFlash 133X Ultra-Speed with Dual-Channel Support is a super-fast CompactFlash memory card from Transcend. The data transfer rates for the 133X memory cards reach up to 21.5 MB/s. This makes the Transcend 133X significantly faster than conventional CF flash cards. With this high-performance CompactFlash card, you achieve top performance not only on professional digital cameras but also on other high-performance devices.