The Signature Line DDR4 SODIMM memory from Patriot Memory offers the quality, reliability, and performance expected for today's notebook requirements. By using specific material compositions, we ensure that each module meets and exceeds industry standards, allowing for a hassle-free upgrade. We certify every component that goes into our modules, including the modules themselves, which must meet 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 option for system upgrades.