Originally Posted by
Gaucho100K
Or is this rating thing only something for MicroSD cards...?
Speed Class ratings are defined by the SD Association, so they are only applicable to SD, miniSD qnd microSD cards.
UDMA is a technology. CF cards are mostly rated by speed (30MB/sec) or a multiple of the "base" speed (150kbps, so a 30BM/sec card may be spec'd as "200x")
According the specs on Amazon, the only place I could find quickly, it's only Class 2 speed.