(UTC)

 All devices will support these cards.  That speed is an estimate of the maximum speed the card will go.  A device will wait while the card does its thing; a faster card will cause less wait at the device.  Some devices don't particularly need a very fast card so you are unlikely to notice a difference in the higher speeds, but the cards will still work. 136.186.1.185  03:58, 1 July 2008