The M2Y51264DS8HB1G-5T is a DDR-400 64Mx64 Pb-Free memory module designed by Elixir, a reputable manufacturer in the semiconductor and memory module industry. With its configuration laid out in a 64Mx64 architecture, this DDR (Double Data Rate) module operates at a clock rate of 400MHz, which is standard for DDR-400 specifications, offering a substantial improvement over earlier DDR technologies in terms of data transfer rate and bandwidth. The module comes in the form of a 184-pin DIMM (Dual In-line Memory Module), compatible with desktop PCs that support DDR 400 memory. Being 'Pb-Free' indicates that this module adheres to environmental standards by avoiding the use of lead (Pb) in its construction, aligning with global initiatives for reducing hazardous substances in electronic products. The M2Y51264DS8HB1G-5T, with its robust performance and eco-friendly design, is suitable for users looking to upgrade their system's memory while ensuring compliance with environmental standards.