UDMA and SanDisk Extreme IV

Started Sep 7, 2007 | Discussions thread
Pradipta Dutta
Pradipta Dutta Veteran Member • Posts: 9,791
Yes, SanDisk Extreme IV uses UDMA for I/O

Any CF Card that can support I/O speed of more than 16.7 MB/s has to use UDMA. SanDisk Extreme IV uses UDMA Mode 3 to achieve I/O speed of 40 MB/s.

Here is a good article on UDMA -

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