Samsung M321RAJA0MB0-CWM

Overview

The Samsung M321RAJA0MB0-CWM is a 128 GB DDR5 registered memory module designed to enhance the performance of modern servers and high-end workstations. Operating at a fast data transfer rate of 5600 MHz under the PC5-44800 standard, it supports demanding applications such as virtualization, in-memory databases, real-time analytics, and complex content creation. Its dual-rank 2R × 4 design and onboard register improve signal integrity, ensuring stable and scalable memory performance in multi-DIMM configurations.

Key features

• High-capacity 128 GB DDR5 RDIMM module that provides ample memory for large workloads and multitasking.
• Fast 5600 MHz data rate to keep up with the speed requirements of modern processors and memory-intensive applications.
• ECC with 8-bit parity automatically detects and corrects single-bit errors, protecting data integrity and system reliability.
• Low 1.1 V operating voltage reduces power consumption and heat generation, improving energy efficiency in dense server environments.
• Dual-rank 2R × 4 architecture with an onboard register enhances signal quality and supports stable operation when multiple DIMMs are installed.
• Compatible with motherboards supporting DDR5 RDIMM 288-pin slots and configurations allowing two DIMMs per channel for flexible upgrades.

Key specs

• Capacity: 128 GB
• Memory type: DDR5 registered DIMM (RDIMM)
• Data rate: 5600 MHz (PC5-44800)
• Voltage: 1.1 V
• Pin count: 288-pin
• Architecture: Dual-rank 2R × 4
• Error correction: ECC with 8-bit parity
• Supported configurations: x4 and x8 organization, two DIMMs per channel

Connectivity and compatibility

This memory module fits into standard 288-pin DDR5 RDIMM slots found on compatible server and workstation motherboards. It supports configurations with two DIMMs per channel, allowing for scalable memory expansion. The module’s design ensures compatibility with systems that require registered memory for improved signal integrity and stability under heavy workloads.

Performance and reliability

With ECC error correction, the module safeguards against data corruption by automatically detecting and fixing single-bit errors. This feature is critical in environments where data accuracy and uptime are paramount, such as financial services, healthcare, and scientific research. The onboard register further stabilizes command and control signals, enabling consistent performance even when all memory slots are populated.

Ideal uses and environments

This Samsung memory module is well suited to enterprise servers and high-performance workstations that handle large datasets and complex computations. It works effectively in virtualization hosts, real-time analytics platforms, and content creation systems where both capacity and speed are essential. Its energy-efficient design also makes it a strong choice for data centers aiming to reduce power consumption and cooling costs.

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