What is an SD Card?


If there’s something you’d love to change about your device, it’s probably the storage space. An SD card is a solution. While they are the size of your fingernail, they can store a lot of data. 

 Inside a typical SD card are little memory chips doing a good job- to store music, documents, photos, and more.  

They are pretty durable- and some people even claimed they are waterproof. 

Let’s take, for example, Samsung claims that all its SD cards not only waterproof but also durable enough to withstand being run over by a vehicle. 

What’s an SD card?

SD card or Security Digital card is a mini device that helps store your additional information. It is inserted in mobile devices like smartphones and cameras and can be a lifesaver in many situations. 

SD cards are available in the mini format, regular format, and microformat.

You can easily put the micro and mini formats into an adapter that makes them readable with the standard SD slot sizes on PC and tablets. 

A standard SD card size is 32*24mm. You may be wondering, what are micro SD cards used for? 

They are commonly used in smartphones and other mobile devices that support data storage.  

It’s difficult to answer the question of which SD card is the best because it totally depends on individual wants. Obviously, going with a micro SD card would be ideal, especially if that’s what your phone requires. 

This also applies to the size of the SD card. You don’t want to spend $100+ on a 120GB card when you know you’re not going to be needing more than 20GB. 

The SD card is a basic way to transfer and store information. Here’s the good news: the SD card is a non-volatile solution and doesn’t require a power source to keep the information. It is particularly mobile, portable, and will likely be compatible with a range of smart devices, provided they support the use of SD card. 

SD Cards

SD cards- how does it work?

Most times, your device will automatically start to scan the SD card as soon as you insert one. 

Smartphones, for example, will search for every picture you have on your card- regardless of its format- and include them in your gallery automatically. 

 How to use an SD card

Using an SD card is quite easy and straightforward. In most cases, what you need to do is to remove the SD slot from your phone or any device you want to use, but the card into the slot and insert it into the device. 

 Usually, your device will automatically detect the signal, and you can start accessing your stored devices.  In some unfortunate situations, SD cards are formatted unknowingly, and you may have to look for ways to recover the information you just lost. 

You can find different tools on the market to handle that. 

SD cards- FAQ

We’ve combined a list of the questions we get asked frequently by our readers. 

What is the maximum memory card my phone can support?

Officially, the maximum supported memory card varies among phones- however, it is typically between. 32GB-64GB, depending on your device manufacturers. 

You can visit the Hugidy website: https://www.hugdiy.com/, This is a memory card manufacturer from China, you can wholesale various SD cards from Hugdiy.

Is it possible to restore the files I deleted from my SD card? 

Unfortunately, it may not be totally possible- but if you recently deleted the data and you are yet to use the card since, then it may be possible to recover the file using data recovery tools. While this could be another hit and miss, it is worth giving a try. 

Is it possible to save my downloaded apps to the SD card, or it remains on Phone memory? 

For Android 4 phones and above, you can find these options available. However, it still depends on the creator of the app and whether they support this feature. 

To know whether you can move an app to your SD card, visit your phone ‘settings’ option, and tap ‘applications.’ Next is to select an application you want to move to. If the app enables the feather, you’ll see the ‘Move to external Card’ option. And if you want to move it back to your phone, simply follow the same process and click on ‘Move to phone’ 

Can my text messages and email be read by someone else if they put my SD card in their device? 

No- your phone stores test and email in its internal memory. However, they can still access your music, videos, photos, and any application you store on the SD card.