MicroSDHC stands for “micro Secure Digital High Capacity” format, which means that the format espouses a small casing and a large storage capacity. On this promise, these small devices deliver on a big scale. Measuring in at 0.43 inches wide by 0.59 inches tall and by 0.039 inches thick, microSDHC cards can carry quite an impressive amount of data for their small size. In fact, the high capacity storage is what differentiates them from normal microSD cards; the higher capacity format can currently pack up to 32 Gigabytes of data into the same space that normal microSD cards use for 2 Gigabytes of storage or less.
MicroSDCH cards find themselves with a wide variety of possible uses, thanks to their small size and high capacity rates. Many brands of cell phones, cameras, PDAs, and GPS units can use microSDHC cards natively, while still many others can use them with a microSD adapter (which increases the size of the unit to that of a standard SD card). Some companies also offer USB flash drive adapters, which allow a microSDHC card to be used on a computer in the same manner as a normal flash drive, while also allowing the card to be switched in and out with little to no difficulty.
Because of this versatility, these cards tend to be highly prized by professionals in a wide variety of fields. With professionals from varied industries from transportation to business administration and on to graphic design and photography employing these cards in some manner or another, it is easy to see that the audience seeking them is a large and diversified one, indeed. The audience grows even more diverse when one adds in the non-professionals in those fields, and related ones. Amateur photographers, for example, tend to use microSDHC cards at similar rates to their professional counterparts, as do designers and illustrators working with multiple media devices.
There are some slight drawbacks to the format, however. The high capacity formatting on microSDHC cards makes them incompatible with some of the older microSD technologies, prohibiting those who hold on to older equipment from using them effectively. While this problem will evaporate with time and advancement, the format is still new enough that first-time buyers are best advised to make sure that their current equipment is properly enabled for the use of these high capacity cards.
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