Nintendo is losing a Switch cartridge supplier

Nintendo is about to lose a major memory supplier for its Switch cartridges, and the story is a useful lesson in supply chain risk. Macronix, which makes the ROM chips used in those cartridges, announced on a recent quarterly earnings call that it will gradually phase out ROM production. Instead, the company is focusing on NOR flash memory for data centers.

The signal here is market pressure. Macronix's ROM revenue fell 39 percent compared to last year, according to Taipei Times, and the company is moving toward the areas where demand is growing. For a hardware business, that kind of shift can quickly change what components are available and how long they stay in production.

For product teams, procurement leads and engineers, this is a reminder to track the lifecycle of key components, not just their price. Legacy parts can disappear faster than the products built around them.

What would you do first if a critical component supplier announced a wind-down? Share your view.