Which memory technology and speed does this module use?

This module uses DDR5 technology under Lenovo’s TruDDR5 designation and is rated at 4800MHz. It is identified as part of the 32GB DDR5-4800 1Rx4 RDIMM category, making it suitable for ThinkSystem servers designed for DDR5 RDIMM ECC server memory at that speed rating.

What is the form factor and rank configuration of this memory?

The 4X77A81439 module is specified as a 1Rx4 9x4 RDIMM-A. This means it is a registered DIMM with a 1Rx4 organization, placed in the DDR5 RDIMM ECC server memory category and intended for server configurations that require this specific rank and layout.

For which systems is the Lenovo 4X77A81439 intended?

The Lenovo 4X77A81439 is part of the ThinkSystem TruDDR5 memory line and is described as a 32GB TruDDR5 4800MHz 1Rx4 9x4 RDIMM-A module. It is therefore intended for Lenovo ThinkSystem servers that support TruDDR5 32GB DDR5-4800 1Rx4 RDIMM modules.

How is this module categorized for procurement purposes?

For procurement and cataloging, the module falls under Memory, DDR5 RDIMM ECC Server Memory, and specifically the 32GB DDR5-4800 1Rx4 RDIMM product level. It is also identified by the enterprise designation and the Lenovo ThinkSystem TruDDR5 branding.

4X77A81439 - Lenovo 4X77A81439 32GB DDR5 4800MHz RDIMM memory

Name: Lenovo 4X77A81439 32GB DDR5 4800MHz RDIMM memory
Brand: Lenovo
SKU: 4X77A81439
Price: 1615 USD
Availability: InStock

4X77A81439 - Lenovo 4X77A81439 32GB DDR5 4800MHz RDIMM memory | US IT Hardware

Product overview

The Lenovo ThinkSystem 32GB TruDDR5 4800MHz 1Rx4 9x4 RDIMM-A, SKU 4X77A81439, is an enterprise memory module designed for ThinkSystem servers. This module provides 32GB capacity using DDR5 technology, supporting a 4800MHz data rate. The 1Rx4 organization and 9x4 RDIMM-A design align with typical server memory configurations. As part of the TruDDR5 family, it targets data center and enterprise deployments that require consistent, validated memory components. Positioned in the DDR5 RDIMM ECC server memory category, it is suitable for environments standardizing on 32GB DDR5-4800 1Rx4 RDIMM modules. IT procurement teams can align this part with existing ThinkSystem configurations that specify TruDDR5 RDIMM memory. The focus on enterprise use supports structured planning for memory population and capacity scaling in modern server infrastructures.

32GB TruDDR5 DDR5 server memory capacity
DDR5-4800 speed rating for server platforms
1Rx4 9x4 RDIMM-A registered DIMM design
Optimized for Lenovo ThinkSystem platforms
Enterprise DDR5 RDIMM ECC memory category
Standard 32GB DDR5-4800 1Rx4 RDIMM module

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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Product Type
Manufacturer part #	4X77A81439
Brand	Lenovo
Condition	Refurbished
ECC	Yes, ECC
Rank	1Rx4
Model	ThinkSystem 32GB TruDDR5 4800MHz (1Rx4) 9x4 RDIMM-A
PC Rating	PC5-38400
Form Factor	RDIMM
Memory Type	DDR5
Memory Speed	4800 MHz
Product Line	ThinkSystem

Best for

Enterprise servers
Suitable for enterprise servers that require 32GB DDR5 4800MHz 1Rx4 RDIMM modules aligned with ThinkSystem TruDDR5 specifications.
Data centers
Fits data center environments standardizing on DDR5 RDIMM ECC server memory, specifically 32GB DDR5-4800 1Rx4 RDIMM configurations.
ThinkSystem deployments
Designed for Lenovo ThinkSystem platforms that specify TruDDR5 32GB 4800MHz 1Rx4 9x4 RDIMM-A memory modules.
Capacity planning
Useful in planned memory population schemes where 32GB TruDDR5 4800MHz RDIMMs are the standard building block.
Enterprise standardization
Supports organizations that standardize on Lenovo TruDDR5 server memory across multiple systems and configurations.

Frequently asked questions

What is the memory capacity of the Lenovo 4X77A81439 module?

The Lenovo 4X77A81439 ThinkSystem memory module provides 32GB of DDR5 capacity. It is categorized specifically as a 32GB DDR5-4800 1Rx4 RDIMM module, aligning with typical server memory requirements for enterprise deployments that standardize on this capacity per DIMM.

Module Voltage	1.1 V
Operating Voltage	1.1 V

Lenovo 4X77A81439 32GB DDR5 4800MHz RDIMM memory

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Lenovo 4X77A81439 32GB DDR5 4800MHz RDIMM memory

Product overview

Featuring

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

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Performance

Power Consumption