Several Android smartphones like the Samsung Galaxy S6 or the Nexus 5X do not include a microSD slot. It is therefore impossible in theory to increase the storage memory of these mobiles. But there you run out of space. How about if you were offered a simple and inexpensive solution to add a removable memory card to a phone without a microSD slot?
The microSD slot for absent subscribers
Many phone manufacturers seem to want to do away with memory cards as quickly as possible. Just take a look at the data sheets of the latest high-end smartphones to realize that the microSD port is becoming increasingly rare..
Increase the storage capacity of an Android mobile
And yet, memory cards have many advantages, particularly in terms of price and ease of use. By searching a little on the net, today one can very easily find 32 GB microSD cards for less than 10 euros. See the selection of microSD cards on Amazon.
Then just insert it into the card reader of your smartphone (without forcing) then turn on your phone and wait a few seconds, until it recognizes it. And that is all..
You can then store all your photos, videos, HD movies and music there. On some phones, it is even possible to move its applications to the SD card in order to free up internal memory.
USB OTG microSD card reader
If your phone does not have a microSD card reader, you may soon feel a little cramped. The latest games, photos not to mention 4K videos are taking up more and more space..
You will have to make sure to do regular cleaning on your Android mobile or then invest in a microSD USB OTG card reader . For a small fee, these small devices can expand the memory of any smartphone.
Once connected to the USB port, you can read any memory card directly on your smartphone. You can also use it to transfer your files from your mobile to your computer and vice versa.
These players are Plug and Play. This means that you won't have any drivers to install, or even apps to download to use it. You just need to check before your phone has a micro USB port compatible with OTG (On The Go). 
What is USB OTG
This function offers the same advantages as a USB port on a computer. It can for example be used to connect a USB key, an external hard drive and various accessories such as a keyboard or a mouse.
Most phones sold on the market are compatible with this standard. To be sure, you just need to go to a tour on the website of the manufacturer of your phone and consult the technical sheet of your device.
Where to buy a mini microSD card reader?
As often it is on the net that we will find the best deals. For a little less than 13 euros, the iKross OTG memory card reader has a USB and micro USB port so that it can be used on an Android smartphone or tablet as well as on a computer. In addition it is able to read microSD cards but also SD cards from your camera or camcorder. 