2GB [2x1GB] DDR2-533 (PC2-4200) ECC RAM Memory Upgrade Kit Certified for the Apple Power Mac G5 (Dual Core 2.3GHz) (Genuine A-Tech Brand) 2GB [2x1GB] DDR2-533 (PC2-4200) ECC RAM Memory Upgrade Kit Certified for the Apple Power Mac G5 (Dual Core 2.3GHz) 100% Genuine A-Tech Brand Memory 1GB DDR2-533 PC2-4200 ECC Unbuffered 240 Pin 1.8V CL=4 Memory 64X8 Limited Lifetime Warranty High Quality Ram specifically designed for the Apple Power Mac G5 (Dual Core 2.3GHz)