View random article

What Is a MicroSD Card?

Portable electronic devices are the trend in technology, from the iPod to wafer-thin laptops. They offer power-on-the go, convenience at one’s fingertips. However, these gadgets require portable memory sources, that can store large amounts of data in a small card—for example, the contact information of mobile phones, or the memory cards of recorders.

The main format of portable memory sources is the MicroSD card. It is considered to be the smallest flash memory cards available today. As the name suggest, it is small (or “Micro”). It is distributed by SanDisk (“SD”).

SanDisk was actually the force behind the SD card, which was (in comparison to what was available at that time) already small. However, the company was able to finetune the technology further and come out with the miniSD card, and the smallest version of all, the microSD.

The microSD is just 15 x 11 x 1 millimeters, about the size of a person’s fingernail. Despite this it is able to pack enormous amounts of data. Many gadgets have a special slot for SD cards; those that do not can still be connected to one with a special adapter. Other gadgets, such as cellular phones or GPS trackers, are built in such a way that the microSD is embedded within it. There are also those that allow the card to be removed, to allow buyers to expand memory capacity.

The microSD offers various memory capacity, from 1 gigabyte (the most common) to larger ones (2 gigabyte) and smaller ones (128 megabytes).

Featured in Technology