Integral Memory, has promised to release its 512GB microSD card in February.
The microSD card was unveiled as far back as mid-2015, but that never came to market.
The new 512GB card is rated class 10, UHS-I U1 meaning it guarantees a minimum of 10MB/s sequential writes.
Integral is however, not worried about the rise of cloud storage and says consumer preferences are clear enough.
On phones (or tablets) with a microSD slot, you can upgrade the storage yourself in seconds.
The price of the 512GB microSD card has not been announced yet, but the first 400GB microSD made its debut at $250 and is still holding its price.