Your go-to destination for cutting-edge server products

M321RAJA0MB0-CWMCJ Samsung 128GB PC5-44800 DDR5 5600MT/s 2S2RX4 ECC Memory Module.

M321RAJA0MB0-CWMCJ
* Product may have slight variations vs. image
Hover on image to enlarge

Brief Overview of M321RAJA0MB0-CWMCJ

Samsung M321RAJA0MB0-CWMCJ 128GB PC5-44800 DDR5 5600MT/s 2S2RX4 ECC Sdram 288-pin Rdimm Memory Module. New Sealed in Box (NIB) with 3 Years Warranty

$5,182.65
$3,839.00
You save: $1,343.65 (26%)
Ask a question
Price in points: 3839 points
+
Quote

Additional 7% discount at checkout

SKU/MPNM321RAJA0MB0-CWMCJAvailability✅ In StockProcessing TimeUsually ships same day ManufacturerSamsung Manufacturer WarrantyNone Product/Item ConditionNew Sealed in Box (NIB) ServerOrbit Replacement Warranty1 Year Warranty
Google Top Quality Store Customer Reviews
Our Advantages
Payment Options
  • — Visa, MasterCard, Discover, and Amex
  • — JCB, Diners Club, UnionPay
  • — PayPal, ACH/Bank Transfer (11% Off)
  • — Apple Pay, Amazon Pay, Google Pay
  • — Buy Now, Pay Later - Affirm, Afterpay
  • — GOV/EDU/Institutions PO's Accepted 
  • — Invoices
Delivery
  • — Deliver Anywhere
  • — Express Delivery in the USA and Worldwide
  • — Ship to -APO -FPO
  • For USA - Free Ground Shipping
  • — Worldwide - from $30
Description

Samsung M321RAJA0MB0-CWMCJ ECC Memory

The Samsung M321RAJA0MB0-CWMCJ operates at 5600MT/s, delivering significantly faster data throughput, reduced latency, and greater overall bandwidth. This memory module enables higher data processing capabilities, making it ideal for advanced workloads such as AI inference, big data analytics, high-performance computing (HPC), and large-scale virtualization environments.

Manufacturer & Identification

  • Brand: Samsung 
  • Model Number: M321RAJA0MB0-CWMCJ
  • Product Type: Registered ECC DDR5 SDRAM module

Technical Specifications

  • Capacity: 128GB
  • Memory Type: DDR5 SDRAM
  • Module Configuration: 1 x 128GB
  • Bus Speed: 5600 MT/s (DDR5-5600/PC5-44800)
  • Error Checking: ECC (Error-Correcting Code)
  • Signal Processing: Registered
  • CAS Latency: CL46
  • Rank: 2Rx4

Performance Metrics

  • Transfer Rate: 5600 MT/s (PC5-44800)
  • CAS Latency: CL46 for optimized response times
  • Module Configuration: 1x128GB (2Rx4 rank structure)

Compatibility & Design

  • Form Factor: 288-pin RDIMM for server-grade motherboards
  • Voltage Requirement: Low-power 1.1V operation
  • Dimensions: 6.75" depth x 1" height for standard server chassis fitment

Optimized for Enterprise Solutions

  • Designed for servers requiring high-capacity, error-resistant memory
  • Superior bandwidth supports virtualization and cloud computing
  • Registered design enables stable operation in multi-processor systems

Advanced Memory Architecture

  • 2Rx4 rank organization enhances parallel data access
  • On-die ECC provides additional data protection
  • Backward-compatible with select server platforms

Samsung 128GB PC5-44800 ECC Memory

The M321RAJA0MB0-CWMCJ Samsung 128GB PC5-44800 DDR5 5600MT/s ECC Registered DIMM (RDIMM) Memory Module is designed to deliver ultra-high performance for next-generation server platforms and data-centric workloads. As one of the most advanced DDR5 modules available, this memory module boasts cutting-edge features including ECC (Error Correction Code), 2S2Rx4 configuration, and blazing 5600MT/s data transfer rates, all encapsulated in a 288-pin RDIMM form factor. Designed specifically for use in enterprise servers and data centers, this module supports intensive computing environments with superior reliability and efficiency.

Registered and Dual-Rank Technology

This memory module is a registered (RDIMM) type, meaning that it has an additional register between the memory controller and the DRAM modules. This register helps to buffer the signals, which results in improved stability, especially when using larger capacities of memory in enterprise systems. Additionally, the 2RX4 configuration refers to dual-rank memory, where the module features two separate memory banks, enhancing performance by allowing parallel access to memory cells. The dual-rank configuration can effectively improve throughput and reduce latency.

Capacity:128GB

This module offers a massive 128GB capacity, making it one of the most powerful memory options available for modern server configurations. The high capacity allows IT administrators to consolidate servers, improve VM density, and boost in-memory database performance. The ability to handle large datasets directly in memory reduces I/O bottlenecks and accelerates mission-critical applications.

Reliability

Equipped with ECC (Error Correction Code) functionality, the M321RAJA0MB0-CWMCJ Samsung 128GB RDIMM helps detect and correct single-bit memory errors automatically. This feature is essential for maintaining data integrity in high-availability computing environments where memory stability is critical. ECC technology drastically reduces the risk of system crashes, data corruption, and unscheduled downtime.

288-Pin Registered DIMM Form Factor

The M321RAJA0MB0-CWMCJ is built in the 288-pin RDIMM format, which is the standard for DDR5 server memory modules. Registered DIMMs include an additional register between the DRAM and the memory controller, enhancing signal integrity and enabling the module to support higher memory capacities and speeds. This RDIMM form factor is commonly used in dual-socket or multi-socket server systems.

Enterprise-Class Servers

Enterprise servers require scalable and dependable memory solutions to run large workloads efficiently. The M321RAJA0MB0-CWMCJ fits seamlessly into enterprise-grade systems, enhancing throughput and reliability across database management systems, ERP platforms, CRM software, and cloud-hosted services.

Scalability

As enterprise IT environments continue to grow, DDR5 memory like the Samsung M321RAJA0MB0-CWMCJ ensures future-ready compatibility. The enhanced density, stability, and performance provide a scalable foundation for deploying emerging technologies such as edge computing, hybrid cloud, and AI-driven analytics.

Firmware

For full DDR5, ensure your system BIOS and firmware are updated to the latest versions. This ensures optimal compatibility and performance tuning with DDR5 modules like the M321RAJA0MB0-CWMCJ.

Compatibility 

The Samsung M321RAJA0MB0-CWMCJ 128GB RDIMM is compatible with a variety of next-gen server motherboards and chipsets, including Intel Xeon Scalable platforms and AMD EPYC 9004 series processors that support DDR5 memory architecture. Always refer to your system’s qualified vendor list (QVL) for validated memory compatibility.

Features
Manufacturer Warranty:
None
Product/Item Condition:
New Sealed in Box (NIB)
ServerOrbit Replacement Warranty:
1 Year Warranty