The Samsung M321RBJA0M22-CLP is a 256GB 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 suited to supported server configurations requiring substantial memory capacity and bandwidth.
This Samsung module features ECC support, registered signal processing, and a quad-rank 4Rx4 memory organization. Operating at a rated voltage of 1.1V, it uses a 288-pin DIMM form factor and is intended for server systems that explicitly support compatible DDR5 registered memory.
Key Features
- 256GB Memory Capacity: Provides high-capacity memory for supported enterprise servers and data-intensive computing workloads.
- DDR5-6400 Performance: Supports a rated data transfer speed of 6400 MT/s, equivalent to PC5-51200.
- ECC Registered Technology: Combines error-correcting memory functionality with registered DIMM technology for compatible server platforms.
- Quad-Rank 4Rx4 Organization: Uses a quad-rank memory configuration with x4 DRAM organization.
- 288-Pin, 1.1V Design: Features a 288-pin DDR5 RDIMM form factor and a rated operating voltage of 1.1V.
Technical Specifications
| Brand | Samsung |
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| Part Number / MPN | M321RBJA0M22-CLP |
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| Product Type | Server Memory Module |
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| Capacity | 256GB |
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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 | Quad Rank (4Rx4) |
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| DRAM Technology | 3DS DDR5 SDRAM |
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| Operating Voltage | 1.1V |
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| Pin Count | 288-pin |
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| Module Organization | 32G x72 |
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| DRAM Devices | 40 FBGA DRAM devices |
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| Application | Compatible servers and enterprise computing systems |
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Suitable Applications
The Samsung M321RBJA0M22-CLP is designed for supported server environments that require very high memory capacity. Potential applications include:
- Enterprise server infrastructure
- Virtualization and virtual machine hosting
- Large 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. It is not interchangeable with standard desktop unbuffered DIMMs (UDIMMs) or laptop SO-DIMMs. The host system must explicitly support DDR5 RDIMM memory, 256GB module capacity, and the module's rank and 3DS memory configuration.
The rated speed of 6400 MT/s does not guarantee operation at that speed in every server. Actual performance depends on the processor, server platform, firmware, and memory population rules. Consult the server manufacturer's memory compatibility list before purchasing or installing this module.
DC Supplies Product Note
DC Supplies recommends verifying the exact part number against your server's memory requirements before ordering. Confirm support for 256GB DDR5-6400 ECC RDIMMs with 4Rx4 organization and 3DS technology to help ensure compatibility.
Frequently Asked Questions
1. What is the capacity of the Samsung M321RBJA0M22-CLP?
This Samsung server memory module has a capacity of 256GB.
2. What is the rated speed of this module?
It is rated for DDR5-6400 operation, with a data transfer rate of 6400 MT/s and a PC5-51200 classification. The 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 systems.
4. What does 4Rx4 mean?
The 4Rx4 designation identifies a quad-rank module with x4 DRAM organization. This module also uses 3DS memory technology, so system compatibility should be confirmed before installation.
5. Can I install this module in a standard desktop computer?
Generally, no. Most standard desktop computers use unbuffered memory rather than registered server DIMMs. The motherboard and processor must explicitly support DDR5 RDIMM memory.
6. Will this module operate at 6400 MT/s in every server?
No. Supported memory speeds depend on the server platform, processor, firmware, and DIMM population configuration. Check the manufacturer's specifications to confirm supported speeds and capacities.
