SD Association Brands Ultra High Speed Cards
Jun 23, 2010, 9:00 AM by Philip Berne
The SD Association, the group charged with keeping SD card standards interoperable between devices, has created a new brand and logo for cards with ultra high bus-interface speeds. Cards than can transfer data at 104 MBps and cards capable of real-time video recording will get their own class symbol. While current cards are available branded with speed Class 2 through Class 10, the new cards start fresh at UHS-I. UHS Class 1 cards are capable of real-time video work.
source: SD Association