The M51264J90S is a 4GB DDR3-1333 512Mx64 SODIMM memory module crafted by Kingston Retail. Designed for use in laptops and other small form factor PCs that support DDR3 1333MHz memory, this module offers an effective way to enhance system performance through higher speed and more memory capacity. With a configuration of 204 pins, it provides compatibility with a broad range of DDR3-supporting motherboards and systems. The module operates at a frequency of 1333MHz, facilitating improved system responsiveness and handling of memory-intensive applications with ease. Whether it's for upgraded gaming performance, more efficient multitasking, or smoother operation of memory-demanding software, the M51264J90S module enhances user experience by delivering stable and reliable high-speed memory. Its installation is straightforward, making it an ideal upgrade solution for users seeking to increase their system's memory without the need for extensive technical knowledge.