Samsung DDR5 128GB RDIMM 8800 MT/s
Brand: Samsung | Category: Memory (RAM)
SKU: M321RNSP0KBA-CWM | Part #: M321RNSP0KBA-CWM | MPN: M321RNSP0KBA-CWM
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About the Samsung DDR5 128GB RDIMM 8800 MT/s
With a single module capacity of 128GB, this Samsung DDR5 RDIMM enables enterprise servers to achieve substantial memory ceilings for demanding workloads—a critical specification for storage architects and infrastructure teams designing high-performance computing environments. The Samsung DDR5 128GB RDIMM 8800 MT/s (part number M321RNSP0KBA-CWM) combines Samsung's server-grade memory engineering with next-generation DDR5 speed and density to support modern data center requirements.
Built on Samsung's 3DS (3D Stacked) die architecture, this registered DIMM delivers quad-rank (4R) organization across a 288-pin module interface, enabling efficient memory addressing in large-scale server deployments. The 8800 MT/s data transfer rate and CAS Latency of CL46 support low-latency access patterns essential for transaction processing and analytics workloads. Full ECC support—including on-die ECC per JEDEC DDR5 specification—ensures data integrity across enterprise applications. Operating within a 0°C to 85°C temperature range and consuming just 1.1V, this Samsung module integrates seamlessly into JEDEC DDR5-compliant platforms, including AMD EPYC Gen 4 and Gen 5 processors as well as Intel Xeon Scalable 5th Generation (Emerald Rapids) and subsequent DDR5 server systems. For IT procurement teams evaluating memory upgrades or new server builds, this module addresses the growing need for high-capacity, high-speed memory in virtualization, cloud infrastructure, and database environments.
Key Specifications
- Manufacturer: Samsung
- Part Number: M321RNSP0KBA-CWM
- Memory Type: DDR5 RDIMM
- Capacity: 128GB
- Data Transfer Rate: 8800 MT/s
- Module Interface: 288-pin
- Die Architecture: 3DS (3D Stacked)
- Ranks: 4R (Quad Rank)
- Operating Voltage: 1.1V
- CAS Latency: CL46
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Technical Specifications
| Brand | Samsung |
| Category | Memory (RAM) |
| SKU | M321RNSP0KBA-CWM |
| Part Number | M321RNSP0KBA-CWM |
| Condition | New |
| Manufacturer Part Number | M321RNSP0KBA-CWM |
| Form Factor | RDIMM (Registered DIMM) |
| Memory Type | DDR5 |
| Capacity | 128GB |
| Data Transfer Rate | 8800 MT/s |
| Module Interface | 288-pin |
| Die Architecture | 3DS (3D Stacked) |
| Ranks | 4R (Quad Rank) |
| ECC Support | ECC (including on-die ECC per JEDEC DDR5 specification) |
| Voltage | 1.1V |
| CAS Latency | CL46 |
| Module Width | 64-bit data bus (with ECC: 72-bit) |
| Operating Temperature | 0°C to 85°C (standard operating range) |
| JEDEC Compliance | JEDEC DDR5 RDIMM standard |
| Platform Compatibility | AMD EPYC Gen 4 / Gen 5; Intel Xeon Scalable 5th Generation (Emerald Rapids) and subsequent DDR5 server platforms |
| Density Configuration | 128GB per module (high-density 3DS stack) |
Frequently Asked Questions about Samsung DDR5 128GB RDIMM 8800 MT/s
What does the Samsung DDR5 128GB RDIMM 8800 MT/s do?
The Samsung DDR5 128GB RDIMM 8800 MT/s is enterprise server memory designed for ECC-protected workloads — virtualization hosts, database servers, analytics platforms, and AI training rigs. Samsung validates this module against major server vendor compatibility matrices.