Micron MT18HTF25672FDY-667AZ4ES 2GB DDR2-667MHz FB-DIMM 2Rx8 Memory

Product Description

The Micron MT18HTF25672FDY-667AZ4ES is a 2GB Fully Buffered DIMM (FB-DIMM) memory module, specifically engineered for server and workstation environments that utilize DDR2 memory technology. FB-DIMMs were introduced to overcome the scalability limitations of traditional unbuffered DIMMs, particularly in systems with many memory channels, by incorporating an Advanced Memory Buffer (AMB) chip on each module. This buffer chip serializes data, reducing the electrical load on the memory controller and allowing for higher memory capacities and speeds. This particular module operates at a clock speed of 667MHz, corresponding to a PC2-5300F rating, and features a 2Rx8 organization. The '2Rx8' signifies that the module has two ranks, and each rank is composed of x8 (8-bit wide) DRAM chips. This dual-rank configuration can sometimes offer performance benefits in certain memory access patterns. As an FB-DIMM, it requires a system chipset that specifically supports this type of memory, which was common in servers from manufacturers like Intel (e.g., certain Xeon platforms) and AMD during the DDR2 era. Furthermore, the MT18HTF25672FDY-667AZ4ES includes Error-Correcting Code (ECC) functionality. ECC memory can detect and correct common types of internal data corruption, significantly enhancing system reliability and data integrity, which is critical for mission-critical server applications. The standard operating voltage for DDR2 FB-DIMMs is 1.8V. This module is a component designed for systems requiring robust, high-capacity memory solutions that were standard in enterprise computing during the DDR2 lifecycle.