Samsung's M393B5173GB0-CF8 DDR3 module is engineered for superior performance in servers and workstations, offering a capacity of 4GB with ECC Registered DIMM features for heightened data reliability. Operating at DDR3-1066 (1066MHz), this module is designed to handle the demanding workloads and computing environments of modern servers. It employs a 512Mx72, 4Rx8 configuration, indicating a quad-rank setup with x8 device width, which facilitates broader data paths and enhanced reliability through error correction code (ECC) technology. The module is built on a 240-pin architecture, conforming to the PC3-8500 standard for compatibility. With its construction using Samsung's high-quality 128Mx8 36C chips, the M393B5173GB0-CF8 is tailored for systems requiring robust memory solutions to support extensive applications and processing demands.