Thursday, August 30, 2012

Types of Memory card SD/SDHC/SDXC

Now a days with use of so many mobile device,camera there is need of storage device.The storage device used in device is call SD card (Secure Digital) used in most modern cell phones, GPS devices, portable audio players, video game consoles, and expandable USB flash memory drives.Secure Digital or (SD) is a non-volatile memory card format for use in portable devices.

There are basically three types of memory card

This cards come in four different speed classes.
1) Class 2 -is fast enough to record standard-definition video.
2)Classes 4 and 6 are fast enough for standard and high-definition recording.
3) Class 10 is the fastest microSD speed class, capable of full high-definition video recording.
ClassMinimum performance
SDHC Speed Class 2.svg Class 2MB/sec
SDHC Speed Class 4.svg Class 44 MB/sec
SDHC Speed Class 6.svg Class 66 MB/sec
SDHC Speed Class 10.svg Class 1010 MB/sec

Micro SDHC Card
Micro SDHC cards are identical to Micro SD cards in every way except for storage capacity.
 Micro SDHC cards have a capacity range from 4 GB to 32 GB. Only high end mobile devices such as touch-screens and smartphones have support for Micro SDHC cards. Micro SDHC cards are also available in different speed classes. Micro SDHC cards with a high speed class are ideal for task such as HD video recording, while lower speed classes are useful for storing images and music.Class 4,6,10 comes under this category

Micro SDXC Card
Micro SDXC cards are the next generation in Micro SD technology. The SDXC cards feature storage capacities between 32 GB up to 2 TB. The majority of electronic devices have yet to implement Micro SDXC technology. Computers support Micro SDXC cards with the use of a SDXC compatible USB reader, or the SD slot directly on the PC.
CapacitySDSC (SD): 1 MB to 2 GB,   some 4 GB available.
SDHC: 4 GB to 32 GB
SDXC: ≥32 GB to 2 TB


shikha said...

thanxx 4 d information