2GB (1GBx2) Team High Performance Memory RAM Upgrade For PowerBook G4 1.33 17” (Al) M9110LL/A PowerBook 5,3 1. The Memory Kit comes with Life Time Warranty. at Amazon.com
My PowerBook G4 12" Journal - Full tear down, SSD upgrade and CPU Fan. | MacRumors Forums
1GB Memory RAM Upgrade for Apple PowerBook G4 1.5GHz 12-inch DDR-333MHz 200-pin | eBay