At OWC we want your Mac to perform faster and last longer. That’s why we engineer memory specifically tested and optimized for Mac. There’s OWC memory for nearly every upgradeable Mac. Plus we make it easy to upgrade by yourself with step-by-step install videos and included toolkits. It’s the easiest and most affordable way to improve your Mac’s performance. OWC memory is specifically engineered for compatibility with your Mac. We start with the highest-quality components and then create memory to the exacting speed capacity and programming specifications of nearly every upgradeable Apple computer. The result is JEDEC-compliant memory that’s a perfect fit for a faster Mac. FEATURES: DDR4 2666MHz SO-DIMM Single Module iMac and Mac Mini Compatible RoHS Certified OWC Memory Lifetime Limited Warranty SPECIFICATIONS: Technology: DDR4 SO-DIMM Density: 8GB (8192MB) RoHS Certified: Yes Pin Count: 260-pin Op. Temp.: 0°C to +85°C Data Rate: DDR4-2666 Speed: PC4-21300 CL: 19 Voltage: 1.2V Low Noise 8-Layer PCB WHAT'S IN THE BOX: OWC Mac 8GB DDR4 2666MHz SO-DIMM module - Blue x1