Patriot Memory's Signature Line DDR3 Non-ECC Unbuffered SODIMM delivers the quality, reliability & performance expected for today's computer needs. These 8GB modules are designed to run at PC3-10600 (1333 M Hz) at CAS 9 latency timings. Built using specific build-of-materials (BOMs) we ensure that every module meets & exceeds industry standards: offering you a hassle free upgrade. We certify every component that goes into our modules, including the modules themselves, which must pass strict standards to ensure compatibility, quality & reliability. With free customer service & a lifetime warranty, Patriot Memory's Signature memory modules are a perfect system upgrade option.