7X77A01305 Lenovo 64GB PC4-21300 DDR4-2666MHZ SDRAM Dual Rank CL19 ECC Registered 288-Pin LRDIMM Module

The Lenovo 64GB DDR4-2666MHz LRDIMM Memory Module

The Lenovo 64GB (1x64GB) PC4-21300 DDR4-2666MHz Dual Rank CL19 ECC Registered 288-Pin LRDIMM Module SDRAM delivers exceptional performance for enterprise-level servers and workstations. Designed with precision engineering and advanced memory architecture, this Lenovo memory module enhances system efficiency, reliability, and scalability for demanding computing environments. Built with premium-grade components, it provides unmatched stability for mission-critical applications, ensuring optimal speed, bandwidth, and error correction capabilities.

High-Performance Computing (HPC)

Compatibility and Integration

The module is designed for seamless integration with a wide range of Lenovo Think System servers and other DDR4-compatible enterprise systems. Its 288-pin LRDIMM format ensures an easy fit and high compatibility across multiple server platforms.

Speed and Frequency

The DDR4-2666MHz memory speed (PC4-21300) ensures swift data access and enhanced bandwidth for complex computing environments. With a 2666MHz clock frequency, this module supports smooth system operations for databases, virtualization, and high-load applications.

ECC and Reliability Features

Equipped with Error-Correcting Code (ECC) technology, this module automatically detects and corrects minor data corruption, ensuring data integrity and system stability. The Registered (Buffered) design enhances signal strength between memory modules and the system controller, improving reliability in large-scale memory configurations.

CAS Latency and Timing Efficiency

Operating at a CAS latency of CL19, this module balances high-speed performance with low latency. The CL19 configuration minimizes response delays, allowing faster access to frequently used data and improved server responsiveness.

Exceptional Memory Capacity 

This Lenovo 64GB LRDIMM offers a vast storage capacity that empowers professionals handling large-scale data analytics, virtualization, and 3D rendering. With 64GB of memory in a single module, servers can process more information simultaneously, significantly reducing bottlenecks in multitasking and high-performance computing tasks. It’s a perfect fit for businesses that require superior efficiency in database management, cloud computing, and high-load virtual machines.

Optimized for Lenovo Systems

As an officially supported Lenovo memory solution, this module ensures complete compatibility with Lenovo Think System and Think Server platforms. It integrates seamlessly with existing system architectures, supporting consistent and stable operation under intensive workloads.

DDR4-2666MHz Speed and Performance Advantages

The DDR4-2666MHz memory speed provides a balanced combination of bandwidth and latency, enhancing responsiveness and throughput in compute-heavy environments. Compared to earlier DDR generations, DDR4 technology introduces improved energy efficiency, higher density, and faster transfer rates. The PC4-21300 speed grade supports data transfer rates up to 21.3GB/s, ensuring superior memory access and improved performance in server-class applications.

Voltage and Power Efficiency

Improved Data Bandwidth

With advanced DDR4 architecture, the module increases total data throughput and ensures smooth operations for multitasking servers. It minimizes memory bottlenecks and supports modern server processors with wide memory channels for superior scalability.

Reliable ECC Registered (RDIMM) Technology

The ECC Registered functionality in this Lenovo memory module plays a critical role in maintaining data integrity. ECC (Error-Correcting Code) memory automatically detects and corrects single-bit memory errors, preventing system crashes and data corruption—essential for enterprise and server environments. The “Registered” feature stabilizes electrical loads by buffering the address and command signals, ensuring stable operation even in systems with multiple memory modules installed.

Dual Rank LRDIMM Structure for Enhanced Scalability

The Lenovo 64GB Dual Rank LRDIMM module provides superior efficiency and scalability. Dual Rank architecture enables more efficient data access and better parallel processing, allowing servers to handle simultaneous memory requests more effectively. Load-Reduced DIMM (LRDIMM) technology further enhances this capability by reducing electrical load on the memory bus, enabling higher overall memory density and increased system scalability.

LRDIMM vs RDIMM: The Key Difference

Unlike RDIMMs, which buffer control signals only, LRDIMMs buffer both control and data lines—reducing load and improving signal integrity. This enables servers to install more memory modules without sacrificing speed or reliability, making LRDIMMs perfect for enterprise data centers that demand maximum memory capacity and stability.

Superior Build Quality and Durability

Engineered with Lenovo’s strict quality assurance standards, the Lenovo 64GB DDR4-2666MHz ECC LRDIMM module is built to withstand extended operational hours under high-performance conditions. Each unit is tested for compatibility, thermal tolerance, and electrical stability, ensuring flawless integration into professional-grade systems.