The CB4GU2666 is a high-quality DDR4 2666 Module crafted by Crucial, a renowned manufacturer in the memory module industry. With 288 pins and designated as PC4-21300, this module is designed to deliver exceptional speed and reliability for users seeking to upgrade their desktop computing experience. It features DDR4-2666V technology and has a configuration of 512Mx64, making it a UDIMM (Unbuffered DIMM) module with a total capacity of 4GB. Ideal for both general computing and demanding applications, the CB4GU2666 module ensures compatibility with a wide range of systems that support DDR4 2666MHz speeds, offering a significant performance boost over previous generation memory technologies. Its low-voltage operation at 1.2V means reduced power consumption and lesser heat generation, contributing to the overall efficiency and longevity of the system. Crucial's commitment to quality ensures that this module not only meets but exceeds industry standards, providing users with a reliable and durable option for their memory upgrade needs.