1999 Apple Power Mac G4 converted into a Gaming PC - Started this project back in 2016 and now it's finally finished! Though not technically a Mac anymore, I thought the r/Mac
Power Mac G4 + PC Radeon 9000 – Tanner's Website
🍎 Modern G4 Cube is Working 🧊
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Apple PowerMac G4 Cube Keyboard | National Museum of American History