Built to exacting specifications with the finest chips and components available, Transcend DDR4 SO-DIMM memory modules undergo rigorous laboratory testing to ensure unrivaled performance and stability for mainstream notebooks. Because small form-factor cases and slim notebook enclosures usually come hand-in-hand with tightly spaced components with limited room for heat dissipation, Transcend's DDR4 SO-DIMM operates at a nominal voltage of just 1.2V to reduce not only the heat production, but also the overall power consumption to save more energy.