SDXC Memory Cards
Consumer electronics such as cameras and smaller game consoles and mobile communication devices such as smartphones and tablets have been on the rise for years and can be found in virtually every household. Many of these devices have one thing in common: in terms of mass storage, they rely on one of the variants of the Secure Digital Memory Card, better known as an SD card.
This format family has largely replaced competing designs such as the CompactFlash card or proprietary variants like the MemoryStick, or at least displaced it in niches - the SDXC memory card and its sister formats are the undisputed front-runners among the memory cards. The larger but faster SDXC cards compared to the micro variants are mainly used for larger devices such as cameras and game consoles that require high capacities of 32 GB or more.
DIFFERENT FORMATS FOR DIFFERENT USES
The SD card specifications and their physical formats have been adjusted over time, so there are some differences between the versions:
- Capacity: SD card (up to 2GB), SDHC (SD High Capacity - 2GB to 32GB) and SDXC (SD Extended Capacity - 32GB to 2TB)
- Design: SD card (commonly used mainly for digital cameras), MiniSD (since 2009 practically disappeared from the market) and the microSD used mainly in smartphones and tablets
- common combinations of capacity and design: SDHC, SDXC, microSDHC, microSDXC
- Speed classes: Class 2, 4, 6 or 10 (guaranteed write speed in MiB / s) and their detachment UHS-I (performance as SD Class 10) and UHS-II, which also on a new bus system called Ultra-High Speed Bus (UHS ) put.
There are also some special variants, such as SDXC memory cards , which have an integrated USB connector, or SDHC / SDXC cards with integrated WLAN function.