Sony is dealing with PlayStation 5 shortage by making more PS4s - The Japan Times

The older console uses less advanced chips, is simpler to make and provides a budget-friendly alternative to the flagship model.

Sony Tackles PlayStation 5 Shortage by Making More PS4 Consoles - Bloomberg

PlayStation 5 - Wikipedia

Chip shortage bites into PS5 production, Sony reduces supply

A Brief History of the PlayStation, by Alex Anyfantis, SUPERJUMP

PlayStation 5 shortage over, announces Sony exec Jim Ryan - The Washington Post

PS5 Has Been Rapidly Outpacing PS4 Sales In Japan : r/PS5

PS5 Outsold by Xbox in Japan for First Time, But All Stock Related

How to buy a PS5

PlayStation 5 long-term supply issues resolved in Japan and Asia