The LD4AS004G-R2666G is a high-performance DDR4-2666V SODIMM memory module from Lexar Retail, designed for use in laptops and small form factor PCs. With a capacity of 4GB, it operates at a speed of 2666 MHz, ensuring smooth multitasking and enhanced system responsiveness. This module utilizes a 260-pin SO-DIMM form factor, making it compatible with a wide range of DDR4-enabled devices. The 512Mx64 configuration signifies that it is built using multiple memory chips that collectively provide a total of 4GB of storage. This module is well-suited for users looking to upgrade their system's memory, ensuring compatibility with applications requiring high-speed data processing and efficient operation in computing environments.