2GB DDR3 Memory Upgrade for Acer Aspire One D257-13450 Netbook PC3-8500 204 pin 1066MHz Netbook SODIMM RAM (PARTS-QUICK BRAND) Capacity: 2GB Form Factor: 204 pin SODIMM Speed: PC3-8500 DDR3 1066MHz Halogen Free; ROHS Warranty: Lifetime