What is the function of memory card? How to choose the best memory card

With the increasing storage needs of smartphone users on Android, users cannot help but equip themselves with a phone memory card for use. However, what is a memory card and what is the function of a memory card ? How to choose a memory card that suits your needs is a difficult question. Let's find out with TipsMake!

What is a memory card?

Memory card is a type of device used to store data including: photos or other data files. Memory cards are classified into many different types to serve each separate device. For mobile phones and tablets, a type of memory card with a super small size called MicroSD will be used.

microSD cards have extremely large storage capacities, up to 512GB. Because they are electronic devices, MicroSD memory cards are also quite durable, especially some memory card lines such as Samsung's mircoSD cards are also waterproof. 

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What is the function of memory card?

So, what does a memory card actually do? The main function of the card is to store and transfer data. When you insert a memory card into devices such as phones and tablets, you can save more documents, images, and videos than if you just used the internal memory. In addition, memory cards also make it easier to transfer data from one device to another. For example, when you change to a new phone or tablet, you just need to insert the memory card into the new phone or tablet and all important data will automatically be transferred to the new device.

How does a memory card work?

As soon as the memory card is inserted into your phone or tablet, it almost works by itself without the user having to do anything. Your phone will automatically scan the card, identify the necessary information and files stored on the card and arrange them into folders that you can access later through file management applications on Android.

However, when removing the memory card from the device, you need to be careful. The memory card can only be removed from the device when selecting the memory card removal feature on the device, the steps are also performed similarly with the USB plugged into the computer. At that time, when all data connections between the phone and the memory card have been disconnected, and you can safely remove the memory card.

In some cases, if you are using a phone or tablet and suddenly remove the memory card , the data on the card may be damaged or lost. It may also cause some of your applications to crash or even cause software problems on the phone. It is best to only remove the memory card when the phone is turned off or the Eject SD Card feature is enabled.

Can the storage capacity of the memory card be increased?

The answer is no, it is not possible to increase the capacity of a memory card because its size is fixed. There are also some ways to increase the storage capacity of a memory card, for example, you can delete some unnecessary data, files saved on the memory card, transfer files to another storage device or you can buy a new memory card with high capacity.

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How to choose an external memory card for your phone

After knowing the function of memory cards, you can choose your own memory card based on the selection below. With low capacity memory cards, only 4GB to 16GB and high price, as well as phones do not support expanding memory capacity too much. However, due to the increasing storage needs of users, memory cards with large capacity such as 128GB, 256GB or even 512GB have gradually appeared on the market, and phone or tablet products have also begun to support these memory cards.

Choosing a memory card depends entirely on your needs. If you have a habit of taking photos or downloading beautiful photos from the internet, a 64GB memory card is enough. If you often download movies to your smartphone to watch or play many games, 124GB or more will be the right choice.

Memory cards are a very necessary device for us in work and study today, they are used to store necessary information. The above article has clarified for us what a memory card is and what is the function of a memory card? Contact TipsMake via hotline: 19001903 for advice and to order quality, cheap memory cards.

Kareem Winters

Update 16 January 2025