DDR3 ECR*16GB 240 Pin DDR3-1866 PC3-14900 ECC Registered 1866MHz*1.5 volts; Dual Rank (2Rx4)*Access data faster by upgrading your internal memory*Rugged tier one ic chipsets; built for performance and security*Lifetime replacement warranty included*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.