Samsung M393A8G40AB2-CWE

Overview

The Samsung M393A8G40AB2-CWE is a 64 GB DDR4 memory module designed to deliver high capacity and speed at 3200 MHz for demanding server and workstation environments. Its registered DIMM architecture ensures stable operation in multi-module configurations, while built-in error-correcting code (ECC) maintains data integrity by detecting and correcting memory faults automatically. Operating at a low voltage of 1.2 volts, this module helps reduce power consumption and heat generation, making it well suited for dense rack systems and enterprise workloads.

Key features

• Registered DIMM design buffers clock and command signals to maintain stability in systems with multiple memory modules
• ECC with 8-bit parity provides continuous error detection and correction without interrupting system performance
• Dual-rank 2Rx4 layout balances memory density and throughput for efficient data handling
• Low operating voltage of 1.2 volts reduces power draw and heat output, supporting energy-efficient server operation
• Compliance with JEDEC DDR4 standards ensures compatibility and reliable performance across supported platforms
• 288-pin form factor fits motherboards that accept DDR4 registered DIMMs, simplifying upgrades and expansions

Key specs

• Capacity: 64 GB
• Memory type: DDR4 SDRAM
• Speed: 3200 MHz
• Voltage: 1.2 V
• Rank: Dual-rank (2Rx4)
• ECC: 8-bit parity error correction
• Form factor: Registered DIMM (RDIMM)
• Pin count: 288 pins
• Standards: JEDEC DDR4

Connectivity and compatibility

This memory module is designed specifically for server and workstation motherboards that support DDR4 registered DIMMs. Its 288-pin interface ensures straightforward installation and compatibility with systems built for enterprise-grade memory configurations. The registered architecture helps maintain signal integrity when multiple modules are installed, which is essential for virtualization hosts, in-memory databases, and high-performance computing clusters.

Performance and reliability

With error-correcting code built in, this module automatically detects and repairs common memory errors, reducing the risk of data corruption and system crashes. The dual-rank layout optimizes data throughput while maintaining high capacity, making it a strong choice for workloads that require both speed and stability. Operating at a low voltage also contributes to longer component life and lower cooling requirements in server environments.

Ideal uses and environments

This Samsung memory module fits well in enterprise data centers, virtualization servers, and high-performance computing setups where large memory capacity and reliability are critical. IT professionals managing virtual machines, analytics nodes, or file servers will benefit from its combination of speed, error correction, and power efficiency. It is particularly suited to environments that demand continuous uptime and data integrity under heavy workloads.

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