Apple Memory Modules 4GB Kit [4x1GB] DDR-266 PC2100 Non-ECC Unbuffered 184 Pin 2.5V CL=2.5 Memory 64X8 Module Specification 4GB Kit [4x1GB] DDR-266 PC2100 Non-ECC Unbuffered 184 Pin 2.5V CL=2.5 Memory 64X8 When you purchase Apple RAM from 4AllDeals, it comes with a lifetime warranty, as well as lifetime telephone technical support from our US-based technicians. PLEASE NOTE* If you do not purchase this module from 4AllDeals direct, you do not get the lifetime warranty or tech support offered in this ad. Certified, tested and guaranteed for Apple Computers 4AllDeals carries Apple memory for all Apple computers, from the Apple I to the newest Macbook Pros. If you aren't sure what type of memory your Apple Computer needs, do not hesitate to call or e-mail us for help!