Panasonic launches worlds first Class 10 SDHC cards

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.

What is Class 4, 6 ? here is a table :

The following table lists some common ratings and their respective minimum transfer rates.

Rating	Speed (MB/s)	SD Class
6x	0.9	n/a
10x	1.5	n/a
13x	2.0	2
26x	4.0	4
32x	4.8	4
40x	6.0	6
66x	10.0	6
100x	15.0	6
133x	20.0	6
150x	22.5	6
200x	30.0	6
266x	40.0	6
300x	45.0	6