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What is Secure Digital?
Published  07/2/2011 | Computer Encyclopedia Page 2 | Unrated
What is Secure Digital?
The SD card was developed by Toshiba, Panasonic, and SanDisk. It uses NAND Flash, and is mostly used in smaller devices like mobile phones and cameras due to its smaller size as compared to CF cards. SD cards offer a maximum theoretical capacity of 128 GB, and a peak data transfer rate of 20 Megabytes per second. SD cards are also available in smaller sizes, under the names of MiniSD and MicroSD. SD High Capacity (SDHC) is a newer version of SD that is not backward-compatible, and offers capacities above 2 GB.
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