Samsung 128GB DDR4 3200MHz PC4-25600 ECC LRDIMM 4Rx4 Memory Module

Overview

The Samsung M386AAG40AM3-CWE is a 128GB DDR4 server memory module designed to deliver high capacity and reliable performance for demanding server environments. Operating at 3200MHz (PC4-25600), it supports workloads that require fast data transfer and consistent uptime, such as virtualization, large databases, and real-time analytics. Its Load Reduced DIMM (LRDIMM) design reduces electrical load on the memory controller, enabling stable operation even with multiple modules installed.

Key features

• Load Reduced DIMM technology that improves signal integrity by using an onboard register and data buffer, allowing more memory modules per channel without compromising stability
• Error Correcting Code (ECC) support that continuously detects and corrects single-bit errors to maintain data accuracy and system reliability
• High-speed 3200MHz data transfer rate to meet the bandwidth demands of multicore processors and intensive server applications
• Energy-efficient operation at 1.2 volts, helping reduce power consumption in data centers and enterprise servers
• Standard 288-pin form factor compatible with server motherboards designed for LRDIMM modules, ensuring easy installation and broad compatibility

Key specs

• Memory capacity: 128GB
• Memory type: DDR4 Load Reduced DIMM (LRDIMM)
• Speed: 3200MHz (PC4-25600)
• Configuration: 4Rx4
• Voltage: 1.2 V
• Pin count: 288 pins
• ECC support: Yes

Connectivity and compatibility

This memory module fits into standard 288-pin DIMM slots on server motherboards that support LRDIMM technology. It is compatible with systems requiring ECC memory for enhanced error correction and stability. The module’s design ensures it works well in multi-module configurations, making it suitable for high-density server setups.

Ideal uses and environments

The Samsung M386AAG40AM3-CWE is well suited to data centers and enterprise servers that need to maximize memory capacity per slot without sacrificing reliability. It supports virtualization platforms, high-performance computing clusters, and database servers where large memory pools and error-free operation are critical. This module is a strong choice for IT professionals looking to expand memory in systems that demand both speed and stability.