Hello,\n\nI am looking to buy a new SD card but I am not sure which speed to\nbuy. Can a camera cope with any speed card or does the camera have a\nlimit to how fast it can write? For example, I see you can buy 600\nspeed cards but say the camera can only write at 400 speed, then it\nwould not make sense to spend extra money on a 600 speed card.\n\nI see that the faster cards are UHS-I cards. I hadn't heard of this\nbefore, so looked it up on wikipeia:\n[URL]http://en.wikipedia.org/wiki/UHS-I#UHS_Speed_Class[/URL]\n\nIt says "UHS memory cards work best with UHS host devices". What if my\ncamera is not a UHS device? Would it work slower than the advertised\nspeed in that instance? There doesn't seem any point buying a 600x UHS\ncard if a non-UHS camera will only write at say 400x.\n\nI'm thinking of buying the new canon powershot 260sx hs. I have had a\nread of canon's web site but I can't find anything about whether their\ncameras support UHS, only a faq saying to use class 6 or higher.\n\nShould I buy the fastest card I can afford or do these speeds become\nmeaningless after a certain rate?\n\nThanks,\nStephen.