The 657728_4GB_256Mx8_16C_41 is a DDR3 memory module designed to meet the demands of modern desktop computing systems. Manufactured under SK hynix's third-party branding, this module fits into the DDR3 800 Module 240 pins category, adhering to the PC3-6400 standard, which guarantees compatibility with a wide array of desktop systems supporting this specification. It is equipped with specifications of DDR3-1066 and a configuration of 512Mx64 UDIMM, providing a total memory capacity of 4GB. This memory module is designed in a UDIMM (Unbuffered DIMM) form factor, indicating its use in standard desktop applications without the need for ECC or registered memory technologies. With its 2Rx8 configuration, using sixteen 256 Megabit chips (256Mx8 16C), it presents a compelling option for users aiming to upgrade their desktop's memory to improve performance, especially in applications requiring ample memory bandwidth. Offering a blend of capacity, speed, and reliability, this SK hynix-made module is suitable for a variety of computing tasks, including general use, multimedia processing, and light gaming.