1 tb external storage already filled?

I bought a crucial 1 tb and sent my files thats on my extreme Sandisk 64 gb card to the crucial external storage.
When i looked at crucial performance meter, it showed a red rainbow 0-100% and available space: 0

How is it possible to fill up a 1 tb external storage device with only a 64 gb sandisk card??

Did you look to see what is on the 1 TB device?

Did you look to see what is on the 1 TB device?

The same amount of files thats on my 64 gb card. Twenty three raw files.

But when i right clicked on crucial , it said 907 gb of free space left

You may have a counterfeit drive...

You may have a counterfeit drive...

That was from downloading from the crucial website, but when i clciked on the crucial link in my settings, it showed 3/4 full.

so i deleted that link from crucial, i dont know whats up with that...