Amazon.com: parts-quick 512MB Memory RAM Upgrade for Apple PowerBook G4 12 inch 1GHz DDR PC2100 SODIMM Brand : Electronics
Upgrading the 12 Inch PowerBook G4 to its limit - Max RAM and mSATA SSD! - YouTube
2GB (1GBx2) Team High Performance Memory RAM Upgrade for PowerBook G4 1.67 17” (Al) M9689LL/A PowerBook 5,7 1. The Memory Kit Comes with Life Time Warranty. at Amazon.com