These are fixed-size files (e.g., 8MB, 16MB, or 64MB). They behave exactly like original hardware but can "fill up" quickly. How to Set Up Memory Cards in PCSX2
If you are a PCSX2 user who still owns their original memory cards, buying a USB adapter is an essential purchase. It is cheap, functional, and works flawlessly with the right software. It removes the biggest barrier to entry for emulation: the loss of progress.
