The HMA851S6CJR6N-UHN0 is a DDR4 SODIMM module by SK hynix, designed to provide a seamless upgrade or replacement solution for laptops and compact PCs. This module offers a capacity of 4GB with a configuration of 512Mx64 SODIMM in a 1Rx16 layout, aimed at boosting system performance. Operating at a speed of 2400T MHz, it is capable of handling multiple applications simultaneously without compromise, making it ideal for users requiring enhanced multitasking capabilities. Built with SK hynix's reputable 512Mx16 4C technology, it ensures compatibility with a wide range of devices and reliable performance, making it a valuable upgrade for improving system efficiency and responsiveness.