Hi,
I've been looking into this myself and replied to another pre-existing post recently asking the question. I've searched the forums extensively and I have come up with a number of results but not a definitive/confirmed answer.
In one particular case, going back a while, Daid suggested that SDHC cards should *not* be used, as there was a risk of a print restarting mid-print, which could cause numerous problems if such a card was used.
I am not sure if this only applies to the ulticontroller/UM1 or stands for the UM2 as well (which in my case I am particularly interested for).
I would lik