Is it entirely read-only, or would I be able to still write when I want to? For example, Octoprint isn’t much use if I can’t upload models to print. My problem

Is it entirely read-only, or would I be able to still write when I want to? For example, Octoprint isn’t much use if I can’t upload models to print. My problems weren’t due to file system corruption. I think the cards wear out quickly due to writing.