Lenovo 64GB TruDDR4 DDR4-3200 PC4-25600 3200 MHz Server Memory Module

The Lenovo 4X77A08635 is a 64 GB TruDDR4 memory module designed for ThinkSystem servers that need reliable expansion with high capacity. It follows the DDR4-3200 standard, which means the module operates at 3200 MHz and meets the PC4-25600 rating to deliver strong data throughput for virtualization, databases, and analytics.

As a registered DIMM, the module includes a buffer that helps maintain signal integrity when a server is fully populated with memory, allowing larger configurations without sacrificing stability. Error Correcting Code support automatically detects and corrects single-bit errors, reducing the risk of data corruption in critical applications. The 1.20 V operating voltage helps limit power draw and heat output in dense rack installations.

Adding this 64 GB module enables IT teams to consolidate more virtual machines per host, keep in-memory databases responsive, and accelerate scientific or financial modeling workloads that thrive on abundant memory. It is equally useful for cloud providers who need to maximize resource utilization and for enterprises extending the life of existing ThinkSystem infrastructure.

Because it carries the TruDDR4 badge, the module has been fully validated by Lenovo for firmware compatibility, thermal performance, and reliability. Using Lenovo approved memory preserves ThinkSystem warranty coverage and ensures that performance-optimization features within the server firmware recognize the module without manual tuning.

Highlights:

• 64 GB TruDDR4 ECC registered DIMM
• DDR4-3200, PC4-25600 specification with 3200 MHz performance
• Operates at 1.20 V to help reduce power consumption
• Dual-rank design balances capacity and performance
• 288-pin module for Lenovo ThinkSystem memory slots