2GB DDR3 Memory Upgrade for Acer Aspire One D257 AOD257, D260 PC3-8500 204 pin 1066MHz Laptop SODIMM RAM (PARTS-QUICK BRAND) Capacity: 2GB Speed: PC3-8500 DDR3 1066MHz Form Factor: 204 pin SODIMM Halogen Free; ROHS Warranty: Lifetime