Best LRDIMM Memory of 2026

Mike Davis Avatar
Mike Davis
Last Updated: Jan 9, 2025

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LRDIMM memory is a high-performance memory module that is designed to meet the ever-increasing demands of modern computing applications. It stands for Load-Reduced Dual In-line Memory Module and is used in servers and workstations that require high memory bandwidth and capacity. LRDIMM memory modules feature a buffer chip that reduces the load on the memory controller, allowing for more memory to be installed per channel. This technology can double the memory capacity of a server and increase memory bandwidth by up to 50%. LRDIMM memory is ideal for data-intensive applications like big data analytics, virtualization, and high-performance computing.

At a Glance: Our Top Picks

Samsung 64GB DDR4 PC4-21300 Memory Cover #TOP 1
Samsung 64GB DDR4 PC4-21300 Memory
ftb score rating icon 9.8
A-Tech 128GB DDR4 ECC LRDIMM Cover #TOP 2
A-Tech 128GB DDR4 ECC LRDIMM
ftb score rating icon 9.7
NEMIX RAM 512GB DDR4 LRDIMM Cover #TOP 3
NEMIX RAM 512GB DDR4 LRDIMM
ftb score rating icon 9.5

Top 10 LRDIMM Memory

Samsung 64GB DDR4 PC4-21300 Memory

M386A8K40BM2-CTD
Black
64 Gb
Samsung 64GB DDR4 PC4-21300 Memory Cover
Samsung 64GB DDR4 PC4-21300 2666MHz LRDIMM Quad Ranked Registered ECC Memory (M386A8K40BM2-CTD)

The Samsung M386A8K40BM2-CTD 64GB DDR4 PC4-21300 Memory is a high-capacity and high-speed memory module that operates at 2666MHz and 1.2V with quad-ranked registered ECC technology. It has 4R x 4 rank and 288 pins, making it suitable for heavy-duty applications with large amounts of data processing. This memory is ideal for users who require high-performance memory to manage large data sets, perform complex calculations, and run demanding applications.

What We Like
High capacity of 64GB
High speed of 2666MHz
Quad-ranked registered ECC technology for data integrity
#TOP 2

A-Tech 128GB DDR4 ECC LRDIMM

AT32G4D4D2133LQ4N12V
4 Module Kit
32GB | 4Rx4
A-Tech 128GB DDR4 ECC LRDIMM Cover
A-Tech 128GB Kit (4x32GB) DDR4 2133MHz PC4-17000 ECC LRDIMM 4Rx4 Quad Rank 1.2V Load Reduced DIMM 288-Pin Server & Workstation RAM Memory Upgrade Modules (A-Tech Enterprise Series)

The A-Tech 128GB RAM is designed for specific DDR4 server and workstation systems, enhancing your computer's performance. With four 32GB modules, it offers speeds of up to 2133 MHz, allowing for faster data processing and improved multitasking capabilities. This memory is ECC Load Reduced, which means it helps to minimize bottlenecks and increases your system's workload capacity, making it ideal for demanding applications. It's important to note that this memory type cannot be mixed with other ECC types, ensuring compatibility and optimal performance for your setup.

What We Like
High capacity for demanding tasks
Improved performance and speed
Minimized system bottlenecks
Reliable quality control testing
#TOP 3

NEMIX RAM 512GB DDR4 LRDIMM

ML19200-944K08-G
Gold
NEMIX RAM 512GB DDR4 LRDIMM Cover
NEMIX RAM 512GB (8X64GB) DDR4 2400MHZ PC4-19200 4Rx4 1.2V CL17 288-PIN ECC LRDIMM Load Reduced Server Memory KIT

NEMIX RAM 512GB offers a powerful memory upgrade for your server or workstation. With its focus on enhancing performance, this memory kit is an affordable way to improve the speed and efficiency of your computing tasks. Installation is straightforward, allowing you to upgrade your memory in just a few minutes, making it accessible even for those without technical expertise. NEMIX RAM is committed to quality, providing a lifetime replacement warranty and dedicated support from experienced IT professionals. Once you’ve installed this RAM, you can expect a noticeable boost in performance.

What We Like
Enhanced performance
Easy installation
Lifetime warranty
Dedicated support
#TOP 4

OWC 128GB DDR4 ECC LRDIMM Upgrade

OWC
OWC3L2D44R4128G-C057-SF
Black Chips
128GB
OWC 128GB DDR4 ECC LRDIMM Upgrade Cover
OWC 128GB Replacement for Hynix HMABAGL7ABR4N?XN HMABAGL7CBR4N?XN - DDR4 3200 PC4-25600 CL22 4Rx4 288-pin 1.2V ECC Load Reduced LRDIMM Memory RAM Module Upgrade

The OWC 128GB ECC Memory is designed specifically for workstations and servers, ensuring reliable performance in demanding environments. It features load-reduced technology, which helps optimize server efficiency and extend the lifespan of your existing setup. This memory module is fully compliant with JEDEC standards, providing peace of mind that it meets or exceeds all OEM specifications. Additionally, it offers a warranty-safe upgrade, meaning you can enhance your system's capabilities without compromising on reliability. With OWC’s advanced support programs, you can also enjoy free tech assistance whenever needed.

What We Like
Compatible with specific Hynix models
Improves server performance
Meets industry standards
Lifetime warranty and support
#TOP 5

NEMIX RAM 128GB DDR3 LRDIMM

ML12800-344LK04-307
Black
NEMIX RAM 128GB DDR3 LRDIMM Cover
NEMIX RAM 128GB (4X32GB) DDR3 1600MHZ PC3-12800 4Rx4 1.35V 240-PIN ECC LRDIMM Load Reduced Server Memory KIT

NEMIX RAM 128GB is an excellent choice for enhancing your computer's performance. As a trusted distributor and manufacturer, NEMIX specializes in memory upgrades for servers and workstations. You’ll find that upgrading your memory is one of the most effective ways to boost your system's speed and efficiency. Installation is straightforward, allowing you to upgrade your RAM in just a few minutes, making it accessible even for those without technical expertise. NEMIX is committed to quality, offering a lifetime replacement warranty and top-notch support from knowledgeable IT professionals who understand memory upgrades.

What We Like
Enhanced performance
Easy installation
Lifetime warranty
Expert support
#TOP 6

Crucial Technology 64GB LRDIMM DDR4 Memory Module

CT64G4LFQ4266
Multicolor
64GB
Crucial Technology 64GB LRDIMM DDR4 Memory Module Cover
Crucial Technology 64GB 288-Pin LRDIMM DDR4 (PC4-21300) Memory Module, Cl=19, Load Reduced, 2666 MT/S Speed, ECC, 1.2V, Quad Ranked, X4 Based

The Crucial Technology 64GB LRDIMM DDR4 Memory Module features a lifetime limited warranty, LRDIMM form factor, 64GB total capacity, ECC technology, and DDR4 PC4-21300 module type. This memory module is ideal for those who require high-performance memory for their computer system.

What We Like
Lifetime limited warranty
High 64GB total capacity
Reliable ECC technology
#TOP 7

Samsung 32GB DDR4 ECC LRDIMM RAM

107938
Black
32GB
Samsung 32GB DDR4 ECC LRDIMM RAM Cover
Samsung 32GB DDR4 2133MHz PC4-17000 ECC LRDIMM 4Rx4 Quad Rank 1.2V Load Reduced DIMM 288-Pin Server RAM Memory - M386A4G40DM0-CPB

The Samsung 32GB RAM is designed specifically for select server systems, offering a powerful performance boost with its 2133 MHz speed. This single 32 GB module utilizes ECC Load Reduced technology, which enhances data integrity by detecting and correcting errors. With its 288-pin DIMM design, this memory module is easy to install and expand your server’s capabilities. However, it’s important to note that it is not compatible with standard desktop or laptop computers, ensuring that you get the right fit for your server needs.

What We Like
High capacity for servers
Error correction technology
Improves server performance
Easy installation
#TOP 8

A-Tech 128GB DDR4 RAM for Dell R630

AQR166
128 GB
A-Tech 128GB DDR4 RAM for Dell R630 Cover
A-Tech 128GB Kit (4x32GB) Memory RAM for Dell PowerEdge R630 - DDR4 2133MHz PC4-17000 ECC Load Reduced LRDIMM 4DRx4 (4Rx4) 1.2V - Server

The A-Tech 128GB RAM is a high-performance memory upgrade specifically designed for the Dell PowerEdge R630 server. It features four 32GB modules operating at 2133 MHz, ensuring efficient data processing and multitasking. This memory is ECC Load Reduced, enhancing reliability by detecting and correcting memory errors, which is crucial for server stability. Additionally, it operates at the standard voltage of 1.2V, making it energy-efficient. With a lifetime warranty and U.S.-based tech support, you can feel confident in your purchase and get help whenever you need it.

What We Like
High performance for servers
ECC Load Reduced for reliability
Energy-efficient 1.2V operation
Lifetime warranty included
U.S.-based tech support
#TOP 9

NEMIX RAM 256GB DDR4 Memory Kit

Black
NEMIX RAM 256GB DDR4 Memory Kit Cover
NEMIX RAM 256GB (4X64GB) DDR4 2933MHZ PC4-23400 4Rx4 1.2V CL21 288-PIN ECC LRDIMM Load Reduced Server Memory KIT Compatible with Apple Mac Pro 2019 7,1

NEMIX RAM 256GB Kit is designed to enhance your computing experience. With its easy installation process, you can quickly upgrade your system's memory in just a few minutes, allowing for a significant boost in performance. This memory kit is ideal for users looking to maximize their server or workstation capabilities. NEMIX RAM also comes with a lifetime replacement warranty, ensuring that you receive high-quality support whenever needed. By choosing this memory upgrade, you can expect improved speed and efficiency, making your tasks smoother and more efficient.

What We Like
Enhanced performance
Easy installation
Lifetime replacement warranty
High-quality support
#TOP 10

A-Tech 32GB DDR3 ECC LRDIMM RAM

AT32G1D3D1600LQ4N135V
1 Module
32GB | 4Rx4
A-Tech 32GB DDR3 ECC LRDIMM RAM Cover
A-Tech 32GB DDR3/DDR3L 1600MHz PC3L-12800L ECC LRDIMM 4Rx4 Quad Rank 1.35V Load Reduced DIMM 240-Pin Server RAM Memory Upgrade Module (A-Tech Enterprise Series)

The A-Tech 32GB Server RAM is designed specifically for select DDR3 servers, ensuring compatibility and performance. With speeds reaching up to 1600 MHz, this memory module enhances your server's capabilities, allowing you to handle larger workloads efficiently. Its ECC Load Reduced design not only improves reliability but also reduces bottlenecks during high-demand tasks. You can operate it at either 1.35V or 1.5V, providing flexibility for various server configurations. This single 32GB module is perfect for expanding your memory resources and optimizing your server's performance.

What We Like
High capacity memory
Enhanced server performance
Reliable ECC technology
Flexible voltage options
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is Lrdimm memory?

Short for load-reduced dual inline memory module, LRDIMM memory chips are used in server settings, like data centers and cloud computing, and in high-performance computers. LRDIMM features a memory buffer instead of a register like RDIMMs.

2. What is better Lrdimm or RDIMM?

LRDIMMs Provide Better Capacity Using LRDIMMs you can configure systems with the largest possible memory footprints. However, LRDIMMs also use more power and have higher latencies compared to the lower capacity RDIMMs.

3. What is difference RDIMM and Lrdimm?

RDIMMs will be less expensive and lower-power compared to LRDIMMs. They can also reach the highest speeds if your system memory capacity isn't the critical factor. LRDIMMs offer higher DRAM memory capacity. They may be able to support more package ranks because data bits are buffered in the data buffers.

4. Is RDIMM a RAM?

The main difference between RDIMM and UDIMM, also known as DIMM, memory is that RDIMM is registered memory, and UDIMM is unregistered memory.

Editor's Notes

During our lrdimm memory research, we found 24 lrdimm memory products and shortlisted 10 quality products. We collected and analyzed 3,272 customer reviews through our big data system to write the lrdimm memory list. We found that most customers choose lrdimm memory with an average price of $159.38.

The lrdimm memory are available for purchase. We have researched hundreds of brands and picked the top brands of lrdimm memory, including Supermicro, A-Tech, NEMIX RAM, OWC, Crucial. The seller of top 1 product has received honest feedback from 1,238 consumers with an average rating of 4.9.

Written by
Mike Davis Avatar

Mike Davis is a professionally trained electrician with six years of working experience in the electronics industry. He has written an array of web and mobile-based articles for e-magazines and blogs. He loves trying out some novel and popular gadgets and his expertise is in the areas of electronics and computers which is built over many years of working and personal experiences.