Specs: DDR3-1066 PC3-8500 Dual Rank x8 1.5v

DDR3 SO* Works in these Systems: * Latitude E4300 * Latitude XT2 * Latitude XT2 XFR * Precision Mobile Workstation M6400 * Precision Mobile Workstation M6400 Covet * Studio 1435 * Studio 1458 * Studio 14z * Studio XPS 13 * Studio XPS 1640 Made from the highest quality components, Arch Memory RAM modules are designed to increase productivity and help your computer work faster. Arch Memory products are engineered to meet industry standard specifications and rigorously tested to ensure quality. Backed by free technical support, a lifetime replacement warranty and legendary reliability, Arch Memory RAM is your best choice for upgrading your computer\'s memory.

30 Day money back guarantee. Limited lifetime warranty.