Built and tested for Apple?s Mac platform, Patriot Memory?s Signature Apple Line DDR3 Non-ECC Unbuffered SODIMM Kit delivers the quality, reliability and performance expected for today?s computer needs. These 16GB (2 x 8GB) kits are designed to run at PC3-12800 (1600Hz) at CAS 11 latency timings. Built using specific bill-of-materials (BOMs), we ensure that every module meets and 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 and reliability. With free customer service and a lifetime warranty, Patriot Memory?s Signature memory modules are a perfect system upgrade option.