Samsung 128GB DDR5 DIMM 288-pin 5600 MHz PC5-44800 registered Memory Module

The Samsung M321RAJA0MB0-CWM is a 128 GB DDR5 registered memory module that gives modern servers and high-end workstations the room they need to run large, memory-intensive workloads without slowing down. With a data transfer rate of 5600 MHz under the PC5-44800 standard, it feeds processors quickly enough to keep up with virtualization hosts, in-memory databases, real-time analytics, and complex content-creation projects.

This module uses a dual-rank 2R × 4 design and includes an onboard register that cleans up clock, command, and control signals. In multi-DIMM server motherboards, that extra signal conditioning translates into consistent performance and easier scaling when every memory slot is occupied.

Samsung builds in ECC with 8-bit parity, allowing the DIMM to detect and correct single-bit errors automatically. That safeguard helps prevent data corruption and keeps critical services online, which is essential in finance, healthcare, research, and any environment where accuracy matters.

Operating at just 1.1 V, the module draws less power and generates less heat than earlier generations. In dense server racks or edge deployments where efficiency is as important as speed, the lower voltage can trim energy bills and ease cooling requirements.

If your motherboard supports DDR5 RDIMM modules in a 288-pin slot and allows two DIMMs per channel, installation is straightforward. Whether you are expanding an existing fleet or building a new platform, the M321RAJA0MB0-CWM delivers the capacity, speed, and reliability expected from Samsung’s enterprise memory lineup.

• 128 GB DDR5 RDIMM capacity
• 5600 MHz data rate, PC5-44800 performance
• ECC with 8-bit parity for error correction
• 1.1 V operating voltage for energy efficiency
• 288-pin layout for boards that accept DDR5 registered modules
• Dual-rank 2R × 4 architecture with an onboard register
• Supports x4 and x8 organization and two DIMMs per channel configurations