However, this fame is also misused by cheaters. They create a USB drive with fake storage space in it. The outlook and everything else seems fine, until you’re on a desperate move and find out that it was a fake. When you connect your device to the computer, it’ll show the amount written on the box, but in reality, it’s not. This is the prime feature of fake USB storage devices.

Note: When you purchase a USB drive, there is some preserved, inaccessible memory by default. For example, an original 16GB USB flash drive may show 14-15GB, which is pretty normal. No need to get carried away in such situation.

In order to check how much space is truly available on your USB drive, you can perform some checks with some specialized tools. Here are some of the easiest and best tools to help you out. Note that each testing tool creates a test file on your USB flash drive and in most cases, delete all the present files. So, make a backup of all the files from your testing USB drive. The testing process will need some time as well.

• RMPrepUSB

It’s a rich collection of a handy set of tools that allow you to perform tons of actions with your USB flash drive. You can create a bootable USB drive for OS installation (Windows, Linux etc.). The entire interface is a bit confusing, so don’t mess up.

However, we’ll be using the “Quick Size Test” feature on the right panel. Click on the button and follow the on-screen instructions to check out the real size of your SD card or USB drive.

• FakeFlashTest

This is another software from the author of RMPrepUSB. However, this tool is only specialized edition for checking out SD cards or USB drives. It writes data to all the spaces inside the storage and verifies all the data one by one.

This is a very lightweight and powerful tool that offers you to leave the files and check the empty spaces only. Thus, you don’t have to worry about your data being lost.

• H2testw

This is a rather old tool to calculate and verify the actual storage capacity of your USB drive or SD card. However, the tool is quite efficient and easy to use.

Connect your USB drive to your computer, open the program, select your drive and click “Write + Verify”. It’s quite simple, right?

Now, if you got a fake USB drive, you should immediately contact the seller with proof in your hand. If your USB drive is alright, that’s satisfying, right?

• CapacityTester

For Linux users, you can use CapacityTester. It’s quite simple as H2testw and the interface is quite self-explanatory. Mount your SD card or USB drive, select it in the software and click “Start Test”.

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