Lenovo ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) ECC UDIMM Memory Module

The Lenovo 4X77A88512 is a server-grade memory module that adds 32 GB of DDR5 SDRAM to compatible ThinkSystem platforms. Operating at 4800 MHz, it moves data quickly while the built-in Error Correcting Code actively detects and repairs single-bit faults, a safeguard that keeps virtual machines, databases, and critical workloads running without interruption.

This module uses a dual-rank design and is unbuffered, connecting through a 288-pin interface that fits the DIMM slots in Lenovo ThinkSystem SR250 V3, ST250 V3, and ST50 V3 servers. Each module carries a TruDDR5 signature that the system firmware verifies on boot, so administrators can be confident the memory is qualified by Lenovo for stable performance and full warranty support.

Whether you manage a small business server, a branch-office file share, or a test lab that relies on consistent uptime, this upgrade offers an easy path to higher capacity and faster response times. Install it to expand virtual machine density, accelerate analytic queries, or simply give everyday applications more breathing room.

• 32 GB capacity built on DDR5 SDRAM technology
• 4800 MHz data rate for high bandwidth (PC5-38400)
• Error Correcting Code for automatic fault detection and correction
• Dual-rank architecture in an unbuffered design
• 288-pin UDIMM form factor
• TruDDR5 signature for Lenovo firmware authentication
• Qualified for ThinkSystem SR250 V3, ST250 V3, and ST50 V3 servers