1.5GB KIT (3 x 512MB) For Apple Power Mac Series G4 (Digital Audio) G4 (Dual 1GHz SDRAM) G4 (Dual 466-733Mhz) G4 (Dual 800MHz) G4 (PII 466-733Mhz) G4 (Single 800/933MHz) G4 (Single 867MHz) G4 Cube G4 Server (733MHz) G4 Server (AppleShare IP - 533MHz) G4 Server (Dual 800MHz) G4 Server (OS X 533MHz). DIMM SD NON-ECC PC133 133MHZ RAM Memory. Genuine A-Tech Brand. 1.5GB KIT (3 x 512MB) DIMM SD NON-ECC PC133 133MHZ RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Apple Power Mac Series. (See Compatibility List Below)