The Samsung M321RAJA0MB2-CCP is a 128GB DDR5 server memory module designed for compatible enterprise servers and data centre platforms. With a rated data transfer speed of 6400 MT/s, this high-capacity registered DIMM is suitable for supported server configurations that require substantial memory capacity and bandwidth.
This module features dual-rank 2Rx4 organization, Error-Correcting Code (ECC) support, and registered signal processing. Operating at a rated voltage of 1.1V, it uses a 288-pin DIMM form factor and is intended for systems specifically designed to support DDR5 ECC registered memory.
Key Features
- 128GB Memory Capacity: Provides high-capacity memory for compatible enterprise servers, virtualization hosts, and memory-intensive applications.
- DDR5-6400 Data Rate: Supports a rated transfer speed of 6400 MT/s and the PC5-51200 memory classification.
- ECC Registered Technology: Combines error-correcting memory functionality with registered DIMM technology for compatible server platforms.
- Dual-Rank 2Rx4 Organization: Uses a dual-rank module layout with x4 DRAM organization.
- 288-Pin, 1.1V Design: Features a DDR5 registered DIMM form factor and a rated operating voltage of 1.1V.
Technical Specifications
| Brand | Samsung |
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| Part Number / MPN | M321RAJA0MB2-CCP |
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| Product Type | Server Memory Module |
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| Capacity | 128GB |
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| Memory Technology | DDR5 SDRAM |
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| Memory Speed | 6400 MT/s |
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| Memory Standard | DDR5-6400 / PC5-51200 |
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| Module Type | Registered DIMM (RDIMM) |
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| Error Correction | ECC |
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| Rank Configuration | Dual Rank (2Rx4) |
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| CAS Latency | CL52 |
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| Operating Voltage | 1.1V |
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| Pin Count | 288-pin |
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| Form Factor | DIMM |
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| Intended Application | Compatible servers and enterprise computing systems |
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Suitable Applications
The Samsung M321RAJA0MB2-CCP is designed for compatible server environments that require high-capacity DDR5 registered memory. Potential applications include:
- Enterprise server infrastructure
- Virtualization and virtual machine hosting
- Database and business application servers
- Cloud computing and data centre environments
- Memory-intensive enterprise workloads
Compatibility Information
This module is a DDR5 ECC Registered DIMM (RDIMM). It is not interchangeable with standard desktop unbuffered DIMMs (UDIMMs) or laptop SO-DIMMs. The host system must explicitly support DDR5 registered memory, 128GB DIMM capacity, and the module's rank configuration.
Although the module is rated for 6400 MT/s, the actual operating speed depends on the server platform, processor, firmware, and memory population configuration. Check the server manufacturer's compatibility documentation before purchasing or installing this memory.
DC Supplies Product Note
DC Supplies recommends checking the complete part number against your server's memory requirements before ordering. Confirm support for 128GB DDR5-6400 ECC RDIMMs with dual-rank 2Rx4 organization to help ensure compatibility with your system.
Frequently Asked Questions
1. What is the capacity of the Samsung M321RAJA0MB2-CCP?
This Samsung server memory module has a capacity of 128GB.
2. What is the rated speed of this memory?
The module is rated for DDR5-6400 operation, with a data transfer rate of 6400 MT/s and a PC5-51200 classification. Actual operating speed depends on the server's supported memory configuration.
3. Does this module support ECC?
Yes. It is an ECC registered DIMM designed for compatible server platforms.
4. What does 2Rx4 mean?
The 2Rx4 designation indicates a dual-rank module using x4 DRAM organization. Check the server manufacturer's documentation to confirm support for this configuration.
5. Can I use this memory in a standard desktop PC?
Generally, no. Most standard desktop motherboards use unbuffered memory rather than registered server DIMMs. The motherboard and processor must explicitly support DDR5 RDIMM memory.
6. Will this module run at 6400 MT/s in every server?
No. The supported operating speed depends on the processor, server platform, firmware, and memory population rules. Consult the manufacturer's specifications to confirm the supported speed and capacity.
