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Green 288-pin DDR4 LRDIMM module with black chips

Brute Networks

Brute Networks 64GB DDR4-2666 4Rx4 ECC LRDIMM 840759-091

SKU CH-4MAB-HMKXT

High-capacity 64 GB DDR4-2666 ECC LRDIMM with 4Rx4 organisation and CL15 latency for dense server deployments

  • Total capacity64 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • 64 GB capacity lets servers run more virtual machines
  • DDR4-2666 speed with CL15 latency accelerates application response
  • 4Rx4 Load Reduced design maximises installed memory per slot
  • ECC protection prevents data corruption in critical workloads
  • 100 % HP compatible using major-brand Samsung, SK Hynix or Micron chips

High-capacity server memory module

This 64GB DDR4 LRDIMM is built for HP-compatible servers that require maximum installed memory. It targets administrators who need to extend the life of existing rack infrastructure by filling every available slot with high-density modules.

Sustained-load behaviour

Load-reduced buffering reduces electrical load on the memory bus, allowing all ranks to remain active during prolonged workloads without signal degradation. The 1.20V operating voltage keeps power draw stable while the CL15 latency supports consistent response times under continuous virtual-machine pressure.

Build quality and daily implications

Major-brand DRAM chips from Samsung, SK Hynix or Micron are assembled on a 288-pin PCB that meets OEM specifications for HP part 840759-091. The 4Rx4 organisation enables the 64GB density in a single module, so fewer slots are consumed and future expansion remains possible.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $227.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $3.56 per GB
Cheaper than about 85% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameHP
Total capacity64 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Power
Rated voltage1.2 V

Questions about this item

How much heat does the 1.20V LRDIMM add to a chassis under sustained load?

The module operates at 1.20V with a 4Rx4 Load Reduced design that lowers electrical loading on the memory bus, helping keep system thermals manageable during continuous operation.

What motherboard slot and BIOS support are needed for this 288-Pin DDR4 2666 ECC LRDIMM?

A server board with 288-pin DDR4 slots that accept PC4-21300 ECC Load Reduced DIMMs and a BIOS that recognises 4Rx4 64GB modules is required.

Will this 64GB 4Rx4 PC4-21300 LRDIMM mix with existing 2Rx4 or 1Rx4 RDIMMs in the same server?

Mixing Load Reduced and Registered DIMMs or different rank counts in one channel is not supported by most server platforms; populate all channels with identical LRDIMMs for stable operation.

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