Optima Memory is the perfect upgrade to boost the performance of your PC, for casual gaming or your Vista experience. PNY memory upgrades improve the overall system performance for an outstanding value with speeds and densities compatible with all popular desktop and notebook PCs.\n\nDDR3 is the next generation of DDR memory. DDR3 memory features faster speeds, greater bandwidth, lower power consumption and enhanced thermal performance. Although DDR3 modules are the same physical dimension as DDR2 and DDR modules, the plug-in connector configuration is different and as such DDR3 modules are not compatible with PCs requiring DDR2 modules, and vice-versa. \n\nBoost the performance of your PC. PNY memory upgrades will prove to be an outstanding value now and in the future. \n\n- Lifetime warranty\n- Free 24-hour technical support\n- Easy to install\n\nCompatible With:\n- DDR3 PC3-8500 (1066 MHz Bus Speed)