Samsung 128GB PC5-38400 DDR5-4800MHz ECC RDIMM Server Memory
- Massive 128GB Single-Module Density
- DDR5 Architecture at 4800 MHz (PC5-38400)
- Advanced 2S2Rx4 Rank Organization
- 1.1V Ultra-Low Operating Voltage with On-Module PMIC
- 288-Pin Registered DIMM (RDIMM) Form Factor
- Dual-Layer Error Correction (Side-band + On-Die ECC)
General Overview
The Samsung M321RAGA0B20-CWK is an ultra-high-density 128GB DDR5 Registered DIMM designed to push the boundaries of enterprise computing. Operating at an incredible 4800 MHz (PC5-38400), this module allows data centers to maximize their RAM footprint without utilizing additional physical server nodes, drastically lowering total cost of ownership (TCO).
Featuring an advanced 2S2Rx4 rank architecture and operating at a highly efficient 1.1V, this DDR5 module integrates the Power Management IC (PMIC) and On-Die ECC directly onto the chip. This results in unprecedented signal integrity, reduced power consumption, and the massive throughput required for next-generation Intel and AMD EPYC server platforms.
| Brand | Samsung |
|---|---|
| Model / MPN | M321RAGA0B20-CWK |
| Capacity | 128 GB |
| Memory Type | DDR5 SDRAM |
| Bus Speed | 4800 MHz (PC5-38400) |
| Form Factor | RDIMM (Registered DIMM) |
| Rank Structure | 2S2Rx4 |
| Voltage | 1.1 V |
| Error Correction | ECC (Side-band + On-Die) |
| Condition | Brand New |
This hardware is engineered specifically for the following deployments:
- Massive In-Memory Databases (SAP HANA, Oracle, Redis)
- Large Language Model (LLM) AI Training Servers
- Maximum-Density Virtual Machine (VMware vSphere) Deployments
- Hyperscale Cloud and Financial Trading Infrastructure