Patriot Memory's Signature Line DDR3 SODIMM memory delivers the quality, reliability and performance expected for today's computer needs. This 8GB module is designed to run at PC3-12800 (1600MHz) at CAS 11 latency timings. Built using specific build-of-materials (BOMs) Patriot ensure that every module meets and exceeds industry standards: offering you a hassle-free upgrade. They certify every component that goes into their modules, including the modules themselves, which must pass strict standards to ensure compatibility, quality and reliability. With free customer service and a lifetime warranty, Patriot Memory's Signature memory modules are a perfect system upgrade option.