Samsung M393A4K40DB2-CTD

Overview

The Samsung M393A4K40DB2-CTD is a 32GB DDR4 registered DIMM designed for server environments that require stable and reliable memory performance. Operating at 2666 Mbps with a low voltage of 1.2 volts, it offers a balance of speed and power efficiency ideal for data centers and enterprise servers where uptime and data integrity are essential. This module supports complex workloads with its 2R x 4 configuration and error-correcting code (ECC) to maintain system stability under heavy use.

Key features

• Registered DIMM with a built-in register to buffer clock, command, and control signals, enhancing signal stability and reducing electrical noise in multi-module setups
• Supports both x4 and x8 organization with up to two ranks per DIMM, allowing flexible memory configurations and improved performance in 2DPC setups
• Error-correcting code (ECC) with 8-bit parity detects and corrects memory errors, ensuring data integrity for mission-critical applications
• Operates efficiently at 1.2 volts, helping to reduce power consumption and heat generation in server environments
• Compatible with a wide range of server motherboards thanks to its standard 288-pin layout

Key specs

• Capacity: 32 GB
• Memory type: DDR4 registered DIMM
• Speed: 2666 Mbps
• Voltage: 1.2 V
• Rank and organization: 2R x 4, supports x4 and x8
• Error correction: ECC with 8-bit parity
• Pin count: 288 pins
• Configuration: Supports 2 DIMMs per channel (2DPC)

Connectivity and compatibility

This memory module fits standard 288-pin DDR4 DIMM slots found on many server motherboards, making it a versatile upgrade option. Its registered design and ECC support ensure compatibility with enterprise-grade servers that require error correction and signal buffering for stable operation. The module’s support for 2DPC configurations allows system builders to maximize memory capacity without compromising performance.

Performance and reliability

Designed to maintain data integrity and system stability, this Samsung memory module includes ECC with 8-bit parity to detect and correct errors automatically. The register buffers critical signals, reducing electrical noise and improving signal quality, which is crucial in multi-module server setups. Operating at a modest 1.2 volts, it balances performance with energy efficiency, helping servers run cooler and more reliably over long periods.

Ideal uses and environments

This 32GB DDR4 module is well suited for IT professionals managing virtualization, cloud computing, database servers, and other demanding enterprise workloads. Its error correction and signal stability features make it a strong choice for environments where consistent uptime and data accuracy are priorities. Whether upgrading existing servers or building new systems, this module supports configurations that require high memory capacity and dependable performance.

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