Food for thought

Good to Know

The SD Association devised a way to standardise the speed ratings for different cards. These are defined as 'Speed Class' and refer to the absolute minimum sustained write speeds. Cards can be rated as Class 2 (minimum write speed of 2MB/s), Class 4 (4MB/s),Class 6 (6MB/s) or Class 10 (10MB/s).

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Amateur DIY CCTV IP/WiFI/3G/4G Tech