Panasonic has launched the worlds first 'Class 10' series of SDHC cards. Class 10 is a new speed specification developed by the SD Card Association, it inherits the attributes of the current 'Class 6' line with further enhanced speed performance of up to 22MB/s. In addition to its Gold series Class 10 cards, it has announced a Silver series of Class 4 cards with a maximum speed of up to 20MB/s. The Gold series will start shipping by the end of this month in 4, 8, 16 and 32 GB capacities.