Samsung 128GB DDR5 4800MHz PC5-38400 ECC RDIMM Memory Module

Overview

The Samsung M321RAGA0B20-CWK is a 128GB DDR5 ECC Registered DIMM memory module designed for server environments that demand high capacity and reliable performance. Operating at 4800 MHz with a 288-pin interface, it delivers fast data transfer while maintaining energy efficiency at 1.1 V. This module supports complex multitasking and critical workloads by combining large memory size with error correction and signal stability features.

Key features

• High-speed 128GB DDR5 memory running at 4800 MHz to support demanding server applications
• ECC Registered DIMM design that stabilizes clock, command, and control signals for improved system reliability
• 4Rx4 rank configuration allowing efficient handling of complex workloads and multitasking
• Low operating voltage of 1.1 V to reduce power consumption without sacrificing performance
• Built-in 8-bit parity ECC that detects and corrects memory errors in real time, minimizing data corruption risks
• Compatible with EC8 (10x4) RDIMM server platforms, ensuring seamless integration into enterprise systems

Key specs

• Memory capacity: 128GB
• Memory type: DDR5 ECC Registered DIMM
• Speed: 4800 MHz
• Voltage: 1.1 V
• Pin count: 288-pin
• Rank and organization: 4Rx4
• ECC: 8-bit parity error correction
• Compatibility: EC8 (10x4) RDIMM server platforms

Connectivity and compatibility

This memory module is designed specifically for server platforms that support EC8 (10x4) RDIMM types, making it a reliable choice for data centers and enterprise servers. Its 288-pin interface ensures compatibility with a wide range of modern server motherboards that require registered DIMMs with ECC support. The module’s design helps maintain system stability in multi-processor configurations and high-demand environments.

Performance and reliability

With its registered design, the module stabilizes critical signals to prevent timing errors, which is essential for maintaining uptime in servers. The built-in ECC actively monitors and corrects memory errors, reducing the chance of system crashes or data loss. Running at 4800 MHz, it provides the speed necessary for fast data processing while operating at a low voltage to keep power consumption manageable in large-scale deployments.

Ideal uses and environments

This memory module fits well in enterprise data centers, cloud servers, and other professional IT environments where large memory capacity and error-free operation are vital. It is a strong choice for IT professionals who need to expand server memory while ensuring system stability and data integrity. Its balance of speed, capacity, and reliability makes it suitable for virtualization, database management, and high-performance computing tasks.