Your go-to destination for cutting-edge server products

M321RAGA0B20-CWKBJ Samsung 128GB DDR5 RDIMM CL40 PC5-38400 4RX4

M321RAGA0B20-CWKBJ
* Product may have slight variations vs. image
Hover on image to enlarge

Brief Overview of M321RAGA0B20-CWKBJ

Samsung M321RAGA0B20-CWKBJ 128GB Memory Module PC5-38400 DDR5 RDIMM CL40 4RX4. New Sealed in Box (NIB) with 3 Years Warranty

$3,600.45
$2,667.00
You save: $933.45 (26%)
Ask a question
+
Quote

Additional 7% discount at checkout

SKU/MPNM321RAGA0B20-CWKBJAvailability✅ 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 M321RAGA0B20-CWKBJ DDR5 Server Memory

The Samsung M321RAGA0B20-CWKBJ memory module is designed to meet the rigorous demands of modern data centers, enterprise servers, and professional computing environments. Built on next-generation DDR5 SDRAM technology, this 128GB registered DIMM delivers enhanced bandwidth, improved power efficiency, and superior stability compared to earlier memory generations. Its architecture is optimized for continuous workloads, virtualization platforms, and mission-critical applications that require consistent performance and data reliability.

General Information

  • Brand: Samsung
  • Part Number: M321RAGA0B20-CWKBJ
  • Product Designation: 128GB DDR5 SDRAM Memory Module

Technical Specifications

  • Storage Capacity: 128GB
  • Memory Type: DDR5 SDRAM
  • Number of Modules: 1 (Single Module of 128GB)
  • Bus Speed: 4800 Mbps (DDR5-4800/PC5-38400)
  • Data Integrity Verification: ECC
  • Signal Type: Registered
  • CAS Latency Timing: CL40
  • Rank Configuration: 4Rx4

Optimized Bus Speed for Modern CPUs

  • DDR5-4800 signaling for faster data access
  • Improved performance per watt over previous standards
  • Enhanced responsiveness for concurrent applications
  • Designed for next-gen server and workstation platforms

Error-Correcting Code (ECC) Benefits

  • Automatic detection and correction of single-bit memory errors
  • Reduced risk of data corruption in critical applications
  • Improved system uptime for enterprise environments
  • Essential for financial, scientific, and database workloads

4Rx4 Rank Configuration Advantages

  • Four-rank design enhances memory parallelism
  • Improved performance in multi-threaded workloads
  • Better utilization of server memory channels
  • Optimized for enterprise and hyperscale systems

Mechanical and Details

  • 288-pin registered DIMM layout
  • Compact shipping dimensions for secure transport
  • Lightweight construction at approximately 0.20 lb
  • Designed for easy handling and deployment

Ideal Use Cases

  • Virtualized server environments
  • Cloud infrastructure and private data centers
  • High-performance computing systems
  • Enterprise databases and transactional platforms

Samsung M321RAGA0B20-CWKBJ 128GB DDR5 Memory

The Samsung M321RAGA0B20-CWKBJ represents the pinnacle of high-density server memory technology, engineered for next-generation data centers, enterprise servers, and high-performance computing (HPC) environments. As a 128GB PC5-38400 DDR5 RDIMM, this module is designed to deliver exceptional bandwidth, improved power efficiency, and unwavering reliability under sustained heavy workloads. This detailed exploration delves into the technical specifications, architectural advantages, and optimal use cases for this critical server component, providing IT professionals and system builders with the insights needed to make informed infrastructure decisions.

Enhanced Bandwidth and Speed

Operating at 4800 MT/s, this module provides a significant boost in raw data transfer rates compared to top-tier DDR4 (typically 3200 MT/s). The PC5-38400 designation translates to a theoretical peak bandwidth of approximately 38.4 GB/s per module. In a multi-channel server platform (e.g., 8-channel), this can yield over 300 GB/s of aggregate memory bandwidth, drastically reducing data access latency for CPU cores.

Speed

The Samsung M321RAGA0B20-CWKBJ Memory Module boasts an impressive speed of PC5-38400, providing users with exceptional performance and responsiveness. The high-speed nature of this memory module offers numerous benefits for users seeking top-notch performance from their systems.

Technology

The Samsung M321RAGA0B20-CWKBJ Memory Module utilizes DDR5 technology, representing the latest advancement in memory technology. DDR5 offers a range of benefits over its predecessors, making it an excellent choice for users looking for cutting-edge performance and reliability.

Capacity: 128GB

The Samsung M321RAGA0B20-CWKBJ Memory Module is equipped with a massive 128GB capacity, making it an ideal choice for users who require high-performance memory for their demanding workloads and applications. With this impressive capacity, users can experience enhanced multitasking capabilities and improved overall system performance.

Reliability

The 4RX4 organization provides enhanced reliability due to its error-correcting capabilities. Memory errors can lead to system instability or crashes, which can be detrimental when working on critical projects or running vital applications. The 4RX4 organization helps to mitigate such errors by detecting and correcting them in real-time, ensuring a stable and reliable computing experience.

Scalability

The 4RX4 organization allows for scalability in terms of memory capacity. If you require additional memory in the future, adding more 4RX4 memory modules is a simple process that ensures compatibility and optimal performance. This scalability feature allows you to easily expand your system's memory as your needs evolve, without the need for complex configurations or replacements.

Form Factor

The Samsung M321RAGA0B20-CWKBJ Memory Module features the RDIMM form factor, offering numerous benefits for users seeking a reliable and versatile memory solution.

Compatibility

By utilizing M321RAGA0B20-CWKBJ DDR5 technology, this memory module ensures future compatibility with upcoming systems and platforms. As DDR5 becomes the standard in the industry, having a memory module that supports this technology will ensure that your system remains compatible with the latest hardware and software advancements. server, or high-performance gaming rig. The versatility of RDIMM form factor makes it an ideal choice for users who require compatibility across various systems. By adopting DDR5 technology, you are ensuring compatibility with future systems and components. As DDR5 becomes more widely adopted, software and applications will increasingly be designed to take advantage of its capabilities. By investing in DDR5 memory, you are future-proofing your system and ensuring compatibility with upcoming advancements.

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