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Green printed circuit board with gold edge connectors and black memory chips, 288-pin DDR4 LRDIMM module

NEMIX RAM

NEMIX RAM 64GB DDR4 2666MHz CL19 4Rx4 1.2V ECC LRDIMM Dell PowerEdge R540 memory upgrade

SKU CH-S80S-KDQPK

A 64 GB DDR4 2666 MHz ECC load-reduced DIMM for Dell PowerEdge R540 servers

  • Total capacity64 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeLoad Reduced
  • Rated voltage1.2 V
  • 64GB single module expands Dell PowerEdge R540 capacity
  • 2666MHz DDR4 speed matches server memory bus
  • ECC LRDIMM design protects data integrity under load
  • 2V operation lowers power draw in rack environments
  • 288-pin 4Rx4 layout fits registered DIMM slots

Dell PowerEdge R540 memory upgrade

This 64 GB DDR4 2666 MHz module is built for the Dell PowerEdge R540 rack server. It uses ECC LRDIMM load-reduced technology with a 4Rx4 rank structure and operates at 1.2 V. The 288-pin form factor matches the server's memory slots exactly.

Suited for administrators expanding a single R540

IT teams adding capacity to a Dell PowerEdge R540 will find this module validated for that platform. It is not for desktop PCs, laptops or non-Dell servers that require standard RDIMM or unbuffered memory. Buyers who need smaller capacities or different speeds should look at other modules.

Confirm slot population rules before ordering

Check the R540 service manual for supported DIMM configurations, maximum per-channel population and any rank-mixing restrictions. Verify the system BIOS is current enough to recognise 64 GB LRDIMMs. Ensure an empty 288-pin DDR4 slot is available in the correct channel.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $221.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $3.47 per GB
Cheaper than about 87% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR4 2666 MHz ECC LRDIMM Load Reduced Server Memory
Part numberML21300-944K1
Total capacity64 GB
Product type288-Pin DDR4 LRDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeLoad Reduced
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell
In the box
Included items64 GB (1 × 64 GB) DDR4 2666 MHz PC4-21300 4Rx4 1.2 V CL19 288-PIN ECC LRDIMM Load Reduced Server Memory

Questions about this item

Does this 4Rx4 DDR4 LRDIMM require a Dell PowerEdge R540 with available 288-pin slots to install?

Yes, the module uses a 288-pin DDR4 LRDIMM form factor and is built for the R540, so an open 288-pin slot in that server is required for installation.

Can this 1.2V CL19 ECC LRDIMM run alongside existing RDIMMs already installed in the R540?

Load-reduced and registered DIMMs use different buffering schemes; mixing them in the same server is not supported, so populate all channels with matching LRDIMMs instead.

After seating the 64GB PC4-21300 module, how can I confirm the R540 recognises the full capacity and ECC function?

Enter the system BIOS or iDRAC interface on boot; the memory inventory should show 64GB at 2666MHz with ECC status reported as active for the new module.

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