PS4K: What We Know About The Upcoming PS4 Revision Codenamed "Neo" - GameRevolution
More PlayStation 5 information reveals $69.99 price point for games, launch lineup, and PS4 versions | GBAtemp.net - The Independent Video Game Community
PlayStation 4 models
PlayStation CEO thinks developers shouldn't bother making PS4 versions of PS5 games | NoypiGeeks
How to identify which PS4 model you own - We Solve All