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Eight bare green DDR4 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR4 2666MHz ECC RDIMM CL19 1.2V Server Memory

SKU CH-T9AA-HSM1H

Eight 64 GB DDR4 2666 MHz ECC registered DIMMs deliver 512 GB at CL19 and 1.2 V

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 512GB (8 x 64GB)

  • 512 GB total capacity across eight 64 GB modules
  • ECC registered design detects and corrects data errors
  • DDR4 2666 speed with CL19 latency
  • 2 V operation reduces server power draw
  • 288-pin RDIMM form factor fits standard server slots

512GB DDR4 ECC RDIMM Kit

This NEMIX RAM kit delivers 512GB of registered ECC DDR4 memory across eight 64GB modules. It targets servers and workstations that require large-capacity, error-correcting memory for virtualisation, databases or scientific computing. The modules operate at 2666MHz with CL19 latency at 1.2V.

Installation and Common Issues

The 288-pin RDIMM form factor fits standard DDR4 server slots, and the manufacturer notes that upgrades typically take minutes. Because these are registered, dual-rank 2Rx4 modules, the motherboard and CPU must explicitly support registered ECC memory and the total population limits of the platform; consumer boards and many workstation boards will not post with them.

Capacity Headroom and Limits

Eight 64GB modules fill eight DIMM slots, providing 512GB total capacity for memory-intensive workloads such as in-memory databases or large virtual-machine fleets. Headroom ends when the platform's maximum supported memory per socket or total slot count is reached, or when an application demands bandwidth beyond the 2666MHz data rate.

How it compares

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

Price $2,369.99
Pricier than about 89% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $4.63 per GB
Cheaper than about 76% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR21300-924K8
Total capacity512 GB (8 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

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Questions about this item

How can I confirm the 2666MHz CL19 modules are running at the correct speed and latency after installation?

Enter the system BIOS or UEFI and check the memory information screen; it should show DDR4 2666 (PC4-21300) with CAS latency 19 and voltage 1.20V for all eight 64GB RDIMMs.

What is included in the kit and do I need any extra parts to install it in a compatible server?

The kit contains eight 64GB 288-pin DDR4 ECC registered DIMMs (part number MR21300-924K8); no additional components are required if the motherboard supports DDR4 2666 ECC RDIMMs.

Which capacity configuration should I choose if my server has eight DIMM slots and supports 512GB maximum memory?

Select this 512GB kit (8 x 64GB, 2Rx4) to fully populate all eight slots and reach the platform's maximum supported capacity.

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