Lenovo 64GB 2Rx4 DDR5-5600 PC5-44800 EC8/ECC Registered Memory SK Hynix HMCG94AGBRA632N Compatible with: 4X77A88052 4X77B00032

Product Overview

Enhance your server's performance with this Lenovo 64GB DDR5-5600 ECC Registered RDIMM memory module manufactured by SK Hynix. Built for enterprise-class Lenovo server platforms, this high-capacity memory module provides the speed, reliability, and scalability required for virtualization, cloud computing, databases, AI workloads, and business-critical applications.

Featuring 64GB capacity, DDR5-5600 speed, PC5-44800R bandwidth, 2Rx4 dual-rank architecture, and ECC Registered (RDIMM) technology, this module delivers exceptional performance and data integrity for modern data center environments.

• Capacity: 64GB
• Memory Type: DDR5 SDRAM
• Speed: 5600 MT/s
• Bandwidth: PC5-44800R
• Module Type: Registered DIMM (RDIMM)
• ECC Support: Yes (EC8/ECC)
• Rank Configuration: 2Rx4 Dual Rank
• Form Factor: 288-Pin
• Voltage: 1.1V
• Manufacturer: SK Hynix
• OEM Brand: Lenovo Compatible
• Enterprise-grade server memory
• Optimized for mission-critical applications

• Lenovo Option P/N: 4X77A88052 4X77B00032
• SK Hynix P/N: HMCG94AGBRA632N

Module may be supplied with Lenovo or SK Hynix labeling while maintaining the same specifications and compatibility.

Performance

• DDR5-5600 Registered Server Memory
• PC5-44800R Bandwidth
• Advanced ECC Error Correction
• High-Speed DDR5 Architecture
• Designed for Enterprise Workloads
• Improved Bandwidth and Efficiency Compared to DDR4

Architecture

• 64GB Capacity
• 2Rx4 Dual-Rank Design
• Registered DIMM (RDIMM)
• ECC / EC8 Protection
• Built with Genuine SK Hynix DDR5 Components
• 288-Pin Server Memory Module

Electrical Characteristics

• Operating Voltage: 1.1V
• Energy-Efficient DDR5 Technology
• Designed for Continuous Data Center Operation

Compatible with Lenovo servers and systems that support:

• DDR5 ECC Registered RDIMM Memory
• PC5-44800R Modules
• 64GB 2Rx4 RDIMM Configurations

Commonly used in Lenovo ThinkSystem and ThinkAgile platforms supporting:

• 4th Gen Intel Xeon Scalable Processors (Sapphire Rapids)
• 5th Gen Intel Xeon Scalable Processors (Emerald Rapids)
• AMD EPYC 9004 Series
• AMD EPYC 9005 Series

• Supports DDR5 ECC Registered RDIMM systems only.
• Not compatible with DDR5 UDIMM memory.
• Not compatible with desktops, laptops, or workstations.
• Cannot be mixed with DDR4 memory modules.
• Verify system compatibility before purchase.
• For best performance, install memory in matched configurations according to manufacturer recommendations.

• Enterprise Servers
• Virtualization Environments
• Cloud Infrastructure
• Database Servers
• AI & Machine Learning Applications
• High-Performance Computing (HPC)
• Mission-Critical Business Workloads