The speed of Transcend's consumer CF cards is tested using TestMetrix, a CFA-certified testing device.
Using the 8GCF133 as an example:
1X = 150KB/sec
133X = 133 × 150KB/sec = 20MB/sec
Note: Speeds above are theoretical. Actual performance may vary depending on usage conditions, hardware configuration, and environmental factors. These figures refer to the read speed of the card.
For more detailed speed information, please visit Transcend's official website.