Premier DDR4 2666 SO-DIMMDDR4 offers multiple advantages over previous DRAM generations, and ADATA provides the highest quality and the fastest performance. Our Premier DDR4 2666 SO-DIMM memory modules for notebooks arrive in convenient 8GB to 16GB for instant upgrades on any compatible notebook. They deliver faster data transfers than DDR3, coupled with lower energy consumption that reduces heat and extends battery life. Our DDR4 is also optimized to unlock the power of the newest Intel processors.Features High speed up to 2666MHz Energy efficient: saves 20% power compared to DDR3 High-quality PCB provides improved signal transfer and system stability Supports Intel Skylake and Coffee Lake platforms, future-proof for Kaby Lake & Cannon Lake platforms