Specs: 1 x 4GB DDR3L-1600 PC3L-12800 240Pin Non-ECC Unbuffered 1.35v Single Rank (1Rx8) 1600MHz

DDR3 DT* Works in these Systems: * OptiPlex 3040 * Optiplex 3040 MT * Optiplex 3040 SFF * OptiPlex 5040 MT * OptiPlex 5040 SFF * Vostro 3250 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.