Samsung M393A4G43AB3-CWE

Overview

The Samsung M393A4G43AB3-CWE is a server memory module that provides 32 GB of DDR4 capacity and operates at a fast data rate of 3200 Mbps. It is designed as a Registered DIMM (RDIMM), which includes a dedicated register to stabilize clock, command, and control signals—an important feature for servers running demanding workloads continuously. With a low operating voltage of 1.2 V and built-in error-correcting code (ECC), this module ensures reliable performance and data integrity in critical server environments.

Key features

• Registered DIMM design that enhances signal integrity for stable server operation
• ECC technology that detects and corrects single-bit memory errors to maintain system reliability
• Low power consumption at 1.2 V, helping reduce overall server energy use
• Supports both x4 and x8 chip organizations, offering compatibility with a wide range of server platforms
• Allows up to two modules per channel, enabling higher memory density in compatible systems
• Standard 288-pin form factor for easy installation in DDR4 server motherboards

Key specs

• Capacity: 32 GB
• Memory type: DDR4 Registered DIMM (RDIMM)
• Data rate: 3200 Mbps
• Voltage: 1.2 V
• Chip configuration: 2R x 8 with eighteen 2 Gb chips
• Form factor: 288-pin DIMM
• Error correction: ECC (Error-Correcting Code)

Compatibility and use cases

This memory module fits well in a variety of server setups, from entry-level tower servers to high-density rack and blade systems. Its support for x4 and x8 organizations and two-DIMM-per-channel operation provides flexibility for system administrators aiming to maximize memory capacity and performance. It is particularly suited for database servers requiring consistent throughput, virtualization hosts with large memory demands, and data-center nodes where uptime and stability are critical.

Installation and setup

Installation is straightforward thanks to the standard 288-pin layout, which matches most DDR4 server motherboards. The module’s design does not require special tools or modifications to existing airflow paths, making upgrades or replacements simple and efficient. This ease of installation helps minimize downtime during server maintenance or expansion.

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