Originally Posted by zurpher
Has anyone figured out what the SD card controller in the Desire is capapble of?
BTW, I own a HTC Desire S but that should not make too much of a difference I presume.
I know that this is an old thread, but i use a Class 10 U3 32GB microSD in my Bravo. My ROM is a customised R.S.K. SE Deodex with DK2nand (this means that only Dalvik is on the Nand, every other component is on SD). Formerly i used a 16GB class 10 microSD and i feel some improvement in the loading speed of the apps and the boot time. Btw., i don't think that it can be improved further, the speed difference is not that much between the two cards as the specifications suggests.
So, to answer your question, the built-in card controller may have its maximum somewhere between the Class 10 and U3 specified speeds (10 and 30MB/s).