KSM64R52BD4-96MC Kingston 96GB DDR5 6400MHz ECC RDIMM 288-pin Memory Module

Comprehensive Product Overview

The Kingston KSM64R52BD4-96MC represents a pinnacle of high-capacity, high-performance server memory, engineered for the most demanding data center, enterprise, and high-performance computing (HPC) workloads. As a 96GB DDR5 module featuring Error-Correcting Code (ECC) and a Registered Dual In-Line Memory Module (RDIMM) design, this memory is built to deliver exceptional bandwidth, massive data handling capabilities, and unwavering reliability in mission-critical environments.

Main Information

• Brand: Kingston
• Part Number: KSM64R52BD4-96MC
• Product Type: 96GB DDR5 Memory Module

Technical Specifications

• Memory Architecture: DDR5 Registered ECC
• Total Capacity: 96GB
• Speed Rating: 6400MHz data throughput
• Form Factor: 288-pin RDIMM
• Bus Standard: PC5-51200
• Voltage: 1.1V optimized efficiency
• Rank Configuration: Dual-rank (2Rx4)
• CAS Latency: CL52

Performance Highlights

High-Speed Data Flow

• With a blazing transfer rate of 6400MHz, this module ensures seamless multitasking and rapid application responsiveness.

ECC Reliability

• Registered ECC functionality provides error correction, maintaining data integrity and stability in mission-critical workloads.

Optimized Efficiency

• Operating at 1.1V, the module balances power consumption with high-speed output, reducing thermal load in dense server environments.

Key Benefits

• Reliable error correction for consistent uptime
• Large 96GB capacity for memory-intensive applications
• Dual-rank design for enhanced bandwidth utilization
• Precision engineering for Kingston-certified systems

Durability & Stability

• Built with 24Gbit components, ensuring long-term endurance and consistent performance under heavy workloads.

Scalability

• Ideal for expanding server memory pools, supporting virtualization, AI workloads, and large-scale databases.

Kingston KSM64R52BD4-96MC 96GB Memory Module

The Kingston KSM64R52BD4-96MC represents the pinnacle of server memory technology, engineered for data centers, high-performance computing (HPC), and enterprise servers that demand exceptional capacity, unwavering reliability, and top-tier speed. This 96GB DDR5 ECC RDIMM module leverages advanced 24Gbit DRAM components and a cutting-edge 2Rx4 design to deliver massive bandwidth while maintaining critical error correction. Built to meet the rigorous requirements of next-generation Intel and AMD server platforms, this memory is the cornerstone for virtualization, in-memory databases, AI/ML training, and large-scale financial modeling.

Key Specifications at a Glance

This section provides a detailed breakdown of the core technical attributes that define the Kingston KSM64R52BD4-96MC module's performance and compatibility profile.

Capacity and Core Architecture

96GB High-Density Module

The 96GB capacity per module is a significant leap in memory density, enabled by state-of-the-art 24Gbit DRAM chips. This high density allows system builders to achieve massive total memory configurations (often exceeding 1TB per server) with fewer DIMM slots, optimizing cost, power efficiency, and system design. It is ideal for memory-hungry applications that work with vast datasets.

2Rx4 (Dual Rank x4) Organization

The 2Rx4 (Dual Rank, x4 data width) configuration is a key architectural feature. This design offers an optimal balance between performance, capacity, and electrical loading on the memory controller. Compared to single-rank modules, it improves performance efficiency by allowing more interleaving. Compared to x8-based modules, the x4 design provides enhanced reliability through improved signal integrity and is a common requirement for the highest-capacity DDR5 server modules.

Performance and Timing Parameters

DDR5-6400 MT/s Data Rate

Operating at a blazing 6400 Megatransfers per second (MT/s), this module provides a substantial bandwidth increase over previous-generation DDR4. This speed accelerates data access, reduces processing bottlenecks, and ensures that CPUs are fed with data efficiently, directly impacting application responsiveness and throughput for bandwidth-sensitive workloads. Operating at a data rate of 6400 Megatransfers per second (MT/s), this DDR5 module provides substantial bandwidth increases. The underlying architecture features two independent 32-bit sub-channels per module, improving efficiency over DDR4's single 64-bit channel. This results in faster data access for CPU cores, reducing bottlenecks in memory-intensive applications such as in-memory databases, virtualization, and scientific simulations.

288-Pin ECC RDIMM Design

The module utilizes a 288-pin Printed Circuit Board (PCB) and is configured as a Registered DIMM (RDIMM) with Error Correction Code (ECC). The RDIMM (Registered) design includes a register (or buffer) for address and command signals, which reduces the electrical load on the server's memory controller. This allows for support of more memory modules per channel and higher capacities, which is essential for multi-socket servers and maximum configuration flexibility. The ECC functionality is critical for detecting and correcting single-bit errors, ensuring data integrity and system uptime.

Rank and Organization: 2Rx4

The module is organized as 2R (Dual Rank) x4 (data width). A dual-rank module effectively presents two "sides" or sets of DRAM to the memory controller on a single physical stick, improving memory interleaving and access efficiency. The x4 organization (four-bit wide DRAMs) is optimal for server environments as it supports enhanced Chipkill error correction, a more robust form of ECC that can survive an entire DRAM chip failure.

System Compatibility and Platform Support

This memory module is rigorously tested and validated for compatibility with major server platforms. It is engineered to operate seamlessly in systems based on the latest Intel® Xeon® Scalable processors (codename Sapphire Rapids, Emerald Rapids, and beyond) that support DDR5 memory. It is crucial to consult the server manufacturer's Qualified Vendor List (QVL) or Kingston's compatibility tools to ensure support for this specific 96GB, 6400MT/s configuration in your target server model, as BIOS and platform constraints may apply.

CAS Latency (CL52)

The CAS Latency of 52 cycles (at 6400MT/s) represents the optimized timing for this high-speed, high-capacity module. In the context of DDR5's architectural improvements, this latency is managed by the onboard Power Management IC (PMIC) and works in concert with other sub-timings to deliver high performance without sacrificing the stability required in a 24/7 operational environment.

Advanced Reliability and Signal Integrity

ECC (Error Correcting Code) with On-Die ECC

This is an ECC RDIMM (Registered DIMM with ECC). It incorporates full Error Correcting Code, which detects and corrects single-bit errors and detects multi-bit errors, safeguarding data integrity. DDR5 architecture adds an additional layer of robustness with On-Die ECC, where the DRAM chips themselves can correct minor internal errors before passing data to the module-level ECC. This two-tiered approach dramatically improves reliability and reduces silent data corruption risks.

Registered DIMM (RDIMM) Design

The "R" in RDIMM stands for Registered. This module includes a register (or buffer) for address and command signals, which reduces the electrical load on the server's memory controller. This is essential for supporting high-density modules across multiple channels in a multi-DIMM-per-channel configuration, ensuring stable operation at high speeds and with large quantities of memory installed.

Onboard Power Management IC (PMIC)

A defining feature of DDR5, the PMIC shifts voltage regulation from the motherboard to the memory module itself. This allows for cleaner, more stable power delivery, improved signal integrity, and enhanced granularity for power management and monitoring. The PMIC enables the module to operate at its rated 1.1V with high efficiency.

Form Factor

The module adheres to the standard 288-pin DDR5 RDIMM form factor, ensuring broad compatibility with modern server platforms. The physical construction is robust, utilizing a high-quality PCB and components designed to withstand the thermal and vibrational stresses of data center environments. The included thermal sensor enables precise monitoring of module temperature for advanced cooling management.

Power Efficiency

Operating at a nominal voltage of just 1.1V, the DDR5 standard offers improved power efficiency compared to DDR4. This reduced voltage, managed by the onboard PMIC, contributes to lower overall power consumption and heat generation at the rack level, a critical factor for large-scale deployments and sustainability goals.

Ideal Use Case Applications

The combination of high capacity, high speed, and robust ECC makes the Kingston KSM64R52BD4-96MC suited for the most demanding server applications.

Enterprise Virtualization and Cloud Infrastructure

For hypervisors like VMware vSphere, Microsoft Hyper-V, and KVM, large memory pools are essential for hosting a high density of virtual machines. This 96GB module allows for greater VM consolidation ratios, improving resource utilization and reducing physical server count, leading to lower TCO and improved management efficiency.

In-Memory Databases (IMDB) and Analytics

Platforms such as SAP HANA, Oracle Database In-Memory, and SAS rely on storing entire datasets in RAM for instantaneous query response. The massive capacity and bandwidth of these modules directly accelerate transaction processing, real-time analytics, and business intelligence, enabling faster decision-making.

High-Performance Computing (HPC)

CFD, genomic sequencing, climate modeling, and other HPC applications require systems with vast amounts of fast, reliable memory. The 96GB capacity and ECC protection ensure that complex simulations can run to completion accurately and without interruption due to memory errors.