MicroSD Card

You’re quite familiar with the microSD card. You think not? Well it’s present in almost all the devices you use today for storing memory. You probably know it as the memory card. That’s right – the one in your digital camera, cell phone, PDA, mp3 player and any other portable device that needs to store memory, albeit in a compact space. The microSD card is one type of SD card. That’s secure digital card. A normal SD card’s dimensions are 24mm X 32mm. The microSD comparatively is really tiny – just 15mm X 11mm. This small size makes it just right for today’s slim and stylish phones and PDA’s.

Ever since the SD card was launched, sometime in 1999, it has become the most preferred non-volatile medium of storing data. Because the microSD card is a type of non-volatile memory card, it becomes perfect for storing data on a device that cannot have two types of memory like your computer, for example or cameras and cell phones. Since the microSD card is non-volatile, it stores memory even when it’s not powered by your cell phone or any other device. This is why it is possible to physically transfer the card into any other device and keep your data intact.

Although these are the features of any SD card, what one needs to really appreciate about the microSD card is its size and its capacity. To give you an idea, the microSD card is about as large as a grown man’s nail. However, for this size it has the largest capacity available in portable, commercial memory cards and costs the least price per capacity. As devices keep getting smaller and more compact this feature becomes pretty valuable. A microSD card comes in capacities ranging from 64 MB to 2GB. This variety in its range is also what makes it quite desirable – it means that you can have a card for any device you own. If this weren’t enough, the microSD card also gives you a maximum transfer rate of 100 Mbps (megabytes per second)

You may find that you have a microSD card that holds more than 2 GB of data. These cards are of a different format called SDHC which stands for secure digital high capacity. These cards are of the same size or form factor but can store up to 16 GB of data. If you own a microSD card that can hold anything above 2 GB, it will be a microSDHC card. This distinction between microSD and microSDHC cards is important since not all devices are compatible with both. Since the SDHC is a relatively new format, some devices that were compatible with the microSD card may not be compatible with the microSDHC card. However, the great thing about technology is that it can find ways to go around everything and there are firmware available that can help you use both in the same device.

The microSD is the smallest variant of the SD cards – the other two being SD and miniSD. Thus, if you want to use a microSD card in a miniSD or SD compatible device, you will have to use an adapter to make this possible. With an adapter, it is also possible to use memory stick or USB compatible devices for the microSD card. However, in many cases, the adapter itself may not be compatible with every device.

It is also possible to transfer data from a microSD card to your PC, and not just portable devices. This can be easily done with the help of a USB card reader. (Non-USB are also available, but the USB type is preferred for obvious reasons) This card reader is external and connected to the USB port of the computer. The best part is that one card reader will have multiple slots of different sizes to fit any type of SD or SDHC card.

This MicroSD Card Review is Written/Updated on Jun 18th, 2009 and filed under Consumer Electronics. Both comments and pings are currently closed.

Comments are closed