The HMA851S6CJR6N-VK from SK hynix is a 4GB DDR4 2666V SODIMM memory module tailored for use in laptops and small form factor (SFF) systems. Operating at the DDR4-2666 standard with a voltage of 1.2V, this module is designed to enhance the performance of computing devices through increased speeds and bandwidth while maintaining energy efficiency. Featuring a 512Mx64 configuration and utilizing a 1Rx16 (single rank x16) layout, it ensures compatibility and high performance in a wide range of systems. The 260-pin interface of this SODIMM module ensures easy installation and a broad compatibility with DDR4-supporting laptops and SFF PCs. Manufactured by SK hynix, a global leader in semiconductor technology, the HMA851S6CJR6N-VK incorporates high-quality 512Mx16 4C chips, offering reliability and performance for users looking to upgrade their system's memory for improved multitasking capabilities and smoother overall operation. This module represents an excellent choice for users seeking to enhance the speed and response of their devices without compromising on power consumption or reliability.