The M471B5173BH0-YH9 is a 4GB DDR3-1333 512Mx64 SODIMM memory module from Samsung, designed to deliver high-speed performance and efficiency with a voltage of 1.35V. It adopts a 1Rx8 configuration with eight 512Mx8 chips, making it compatible with systems that support DDR3 1333 MHz SO-DIMM memory with 204 pins. This lower voltage specification means it consumes less power, making it an ideal upgrade for laptops and energy-efficient PCs seeking enhanced performance with reduced energy consumption. The module's improved energy efficiency does not compromise its reliability or the smooth handling of demanding applications, embodying Samsung's commitment to quality and innovation in memory solutions.