What ssd do i need for macbook air 13 2015?

Question

macbook

I've already broken my head to read. It's unclear.
1. I would be grateful for a link to an educational program on what kind of nonsense with Makovsky hard drives.
2. The disk is no longer enough, at least 512 is needed. What is the most budgetary way?

Answer 1

there are different solutions https://ru.transcend-info.com/apple/
you can alternatively take a simple ssd m.2 and buy an adapter from the Chinese:
The serial number can fly out of the nuances

Answer 2

What is the cheapest way?

Buy an external drive.