Macronix is exiting ROM production, potentially tightening supply for Nintendo Switch cartridges

Macronix said ROM chip production has “reached its end” and that it will gradually decouple from the game industry. Production has fallen 39% over the past year and now makes up 5% of the company’s business; analyst David Gibson identifies Macronix as Nintendo’s main memory chip maker for physical cartridges.

Nintendo and cartridge partners may need to secure alternative ROM suppliers or adjust production plans as Macronix shifts capacity to more profitable chips. The article gives no timeline for the exit or details on Nintendo’s other suppliers, so the effect on cartridge availability remains unclear.