Samsung 128GB DDR4-3200 PC4-25600 288 pin 1.2 V RDIMM Server Memory Module

Overview

The Samsung M393AAG40M32-CAE is a 128GB DDR4 server memory module designed to deliver high capacity and reliable performance for demanding server environments. Operating at 3200 MT/s with a low voltage of 1.2 V, this 288-pin registered DIMM supports stable operation under sustained workloads. It is ideal for expanding memory in virtualization hosts, database clusters, and analytics servers where uptime and data integrity are critical.

Key features

• Registered DIMM design with an onboard register that smooths clock, command, and control signals to maintain signal integrity in complex server configurations
• High 128GB capacity on a single module using 4R x 4 organization with three-dimensional stacked chips, maximizing density without occupying extra slots
• Error-correcting code (ECC) with 8-bit parity that detects and corrects common memory errors, enhancing system reliability and reducing downtime
• Low 1.2-volt power consumption to help manage energy use in dense server racks and reduce heat generation
• Compatibility with x4 or x8 chip organization and support for up to two DIMMs per channel, allowing flexible memory configurations

Key specs

• Capacity: 128 GB
• Memory type: DDR4 RDIMM
• Speed: 3200 MT/s (PC4-25600)
• Voltage: 1.2 V
• Pin count: 288-pin
• Organization: 4R x 4 with 3D stacked chips
• Error correction: ECC with 8-bit parity
• DIMM type: Registered DIMM (RDIMM)

Compatibility and use cases

This memory module fits server motherboards that support DDR4-3200 registered memory and can handle up to two DIMMs per channel. It is well suited for high-performance computing, cloud infrastructure, and enterprise servers that require large memory pools for virtualization and in-memory databases. Its error correction and stable signal management make it a strong choice for environments where data integrity and uptime are paramount.