PowerBook G4 1.67GHz 17 1Gb 1024MB DDR SODIMM 333MHz PC2700 200pin 2.5v memory upgrade.The latest high density chips which draw less power and run cooler than other brands. This keeps laptop notebook run more stable. Equalant part # DC890B, 324702-001, 344868-001, KTH-ZD7000/1G 31P9834 and KTT3311/1G and many more. Compatible Memory For PowerBook G4 1.67GHz 17