Identical in specifications and purpose to the LENOVO 00D4955, the LENOVO 00D4957 is also a 4GB Low Profile (LP) Unbuffered Dual In-Line Memory Module (UDIMM) crafted to enhance the performance of IBM server systems. This module is optimized to function at 1600MHz, complying with the PC3-12800 standard, and features Error-Correcting Code (ECC) technology to ensure data integrity by detecting and correcting internal data corruption. Sporting a 2Rx8 configuration, it benefits from dual-rank architecture, enabling better signal integrity and overall performance improvement. The memory operates at a 1.5V voltage, striking a balance between energy efficiency and performance capability. Tailored for compatibility with a variety of IBM servers, this ECC DDR3 memory module is an excellent choice for expanding system performance, supporting enhanced multitasking, and accelerating data access in server-based computing environments.