The SanDisk Extreme CompactFlash is a good value in a CF format memory card and fast enough for many photographers. Like the SanDisk Extreme Pro, this card has built-in protection against shock and vibration and a functioning temperature range of -13 to 185 degrees Fahrenheit, covering the vast majority of shooting and storage conditions.
Min. Write Speed: 20 MB/s (Class 20)
Max. Write Speed: 60 MB/s
Max. Read Speed: 60 MB/s