Samsung M386AAG40AM3-CWEZY is a 128GB DDR4 3200MHz ECC Load Reduced DIMM (LRDIMM) server memory module built for enterprise and data center environments. Featuring a 4DRx4 configuration and PC4-3200AA performance class, it delivers high memory density, strong stability, and reliable error correction for mission-critical workloads.

Pulled from working systems and tested and working.

Key Features

• Model: Samsung M386AAG40AM3-CWEZY — 128GB DDR4 3200MHz (PC4-3200AA) ECC LRDIMM
• High Density Support: Built with a quad-rank 4DRx4 dual-die package configuration, this module delivers high capacity in a single 288-pin slot, making it suitable for high-density enterprise server configurations where memory footprint and stability are critical.
• Reduced Electrical Load: The onboard memory buffer isolates the DRAM chips from the memory controller, lowering electrical load so systems can populate more high-capacity modules per channel while maintaining stable operation.
• Data Integrity: Integrated ECC (Error-Correcting Code) functionality helps detect and correct memory errors in real time, ensuring improved system reliability and uptime for mission-critical workloads in data center environments.
• Enterprise-Grade Design: Engineered specifically for server and workstation platforms requiring dependable high-capacity memory. Not compatible with consumer desktops or laptops due to LRDIMM architecture and ECC requirements.
• Compatibility: Supports enterprise platforms using standard 288-pin DDR4 LRDIMM memory slots, including Dell PowerEdge, HPE ProLiant, Cisco UCS, and Supermicro server systems that support 128GB quad-rank DDR4-3200 LRDIMM modules. Support for lower-capacity LRDIMMs does not guarantee support for this module — check your platform's memory QVL.
• Note: You cannot mix LRDIMMs with RDIMMs or UDIMMs in the same system — ensure all installed modules are of the same type.