The 815100-B21R is a high-performance DDR4 2666 memory module designed and manufactured by HPE (Hewlett Packard Enterprise). It features a capacity of 32GB, structured as DDR4-2666V 4Gx72 ECC Reg/RDIMM 2Rx4. This module is engineered to deliver exceptional speed and reliability for demanding server environments, supporting Error-Correcting Code (ECC) to ensure data integrity and reduce potential errors that can lead to system crashes or data corruption. The module operates at 2666 MHz, providing rapid access to data and improving overall system responsiveness. It is ideally suited for use in HPE servers where it significantly enhances system performance, supporting applications that require high-bandwidth and low-latency memory operations. The 815100-B21R is designed with a 288-pin interface, making it compatible with a wide range of HPE servers and systems that support DDR4 technology. This module is an excellent choice for IT professionals and businesses looking to upgrade their server memory to meet the requirements of high-performance computing environments.