The prices of portable memory cards has dropped by almost ridiculous level: 8 GB SDHC cards now start from just £ 12 at the greenbroomstore. However, fans do not want any time they want a memory card, which provides high write performance of their equipment, such as digital cameras, and a quick read, so you can copy the contents of their systems quickly. These elite products are much more expensive, so we invited eight popular brands Shootout.
The Secure Digital (SD) was invented by SanDisk in 2001 and was based on the MultiMediaCard (MMC) standard. Technically, the SD is similar to the MMC, but adds digital rights management on the basis of CPRM. The SD card also has a write protection button, but it is a hardware feature, the client device to manage both the parameters properly.
The 2GB capacity defined by the SD 1.1 standard was not sufficient for pruning trees grew, so SD 2.0 or SDHC standard was added. It allows a capacity of up to 32 GB today, the standard is potentially ready for capacities up to 2TB SDXC follow next year of 32 GB can stay at the limit of the SDHC standard. Note that SD and SDHC cards are identical from the outside, so make sure your device supports SDHC before purchasing such a card (4 GB and above).
The first SD cards can be read at 3.6 MB / s and writes at 0.8 MB / s. Faster cards are increasingly required by the resolutions of digital cameras and more demanding consumers. As a result, SDHC has been divided into three classes: 2, 4 and 6, the figures represent the minimum flow of writing sustainable in MB / s.
It is not only high-resolution digital SLR cameras that require fast memory card that allows them to write more frames per second on the storage device. Another use is important for many purposes, high-speed mobile storage, or by using these cards as system disk drives via USB or eSATA card.
The Secure Digital (SD) was invented by SanDisk in 2001 and was based on the MultiMediaCard (MMC) standard. Technically, the SD is similar to the MMC, but adds digital rights management on the basis of CPRM. The SD card also has a write protection button, but it is a hardware feature, the client device to manage both the parameters properly.
The 2GB capacity defined by the SD 1.1 standard was not sufficient for pruning trees grew, so SD 2.0 or SDHC standard was added. It allows a capacity of up to 32 GB today, the standard is potentially ready for capacities up to 2TB SDXC follow next year of 32 GB can stay at the limit of the SDHC standard. Note that SD and SDHC cards are identical from the outside, so make sure your device supports SDHC before purchasing such a card (4 GB and above).
The first SD cards can be read at 3.6 MB / s and writes at 0.8 MB / s. Faster cards are increasingly required by the resolutions of digital cameras and more demanding consumers. As a result, SDHC has been divided into three classes: 2, 4 and 6, the figures represent the minimum flow of writing sustainable in MB / s.
It is not only high-resolution digital SLR cameras that require fast memory card that allows them to write more frames per second on the storage device. Another use is important for many purposes, high-speed mobile storage, or by using these cards as system disk drives via USB or eSATA card.
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