I'm looking for an adjective to refer to the space available on SD cards or USB sticks (the amount of Gigabytes available, to be clear). Specifically, a shorter version of this:
You need an SD card with a lot of space.
That's still kind of ambiguous. I'm not sure what adjective would be correct here:
You need a large/big/high capacity SD card.
When I use large or big, it sounds as if I'm referring to the physical dimensions of the medium. High capacity is my best guess at the moment, but it still sounds wrong. Is there an accepted adjective for this meaning? If not, what is the best short phrase that I can use instead?