256MB RAM Memory for Apple PowerBook G4 17-in 1.0-1.5GHz Black Diamond Memory Module DDR SO-DIMM 200pin PC2700 333MHz Upgrade System Specific Memory - Newegg.com
VERY RARE** Apple PowerBook G4 A1107 17" 1.67GHz 2GB Ram 250GB HDD+accessories | eBay
Good RAM for iBook G4 12' (2005) ? | MacRumors Forums
Last gen Powerbook G4 with High-Res screen restored with a 256gb SSD, 2gb RAM, and new thermal paste. Really disappointed with the OS9 support however - any suggestions? : r/VintageApple
How to upgrade RAM in your Apple iBook G4 - YouTube