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Twelve green DDR4 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 768GB (12 x 64GB) DDR4 2666 ECC RDIMM server RAM

SKU CH-CD5A-ASJH4

A 768GB registered DDR4 kit of twelve 64GB ECC RDIMMs running at 2666MHz with CL19 latency and 1.2V operation

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 768GB (12 x 64GB)

  • 768 GB total capacity for memory-intensive server workloads
  • 12 modules of 64 GB each simplify large-scale deployment
  • DDR4 2666 speed with CL19 latency supports high-throughput applications
  • ECC registered design detects and corrects data errors automatically
  • 2 V operation reduces power draw in dense configurations

High-density server kit

This NEMIX RAM kit provides 768 GB of DDR4 memory in a matched set of twelve 64 GB registered DIMMs. It is built for enterprise servers and workstations that require large memory capacity with error-correcting code protection for data integrity.

Suited for virtualisation hosts

The registered design and ECC function make it appropriate for multi-socket platforms running heavy virtualisation, database or analytics workloads. Systems limited to unbuffered memory or consumer chipsets cannot use these modules.

Twelve slots fully populated

The kit fills twelve DDR4 slots at 2666 MT/s with CL19 timing and 1.20 V operation. Capacity headroom ends when all slots are occupied; further expansion requires higher-density modules or additional memory channels not addressed by this kit.

How it compares

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

Price $2,994.99
Pricier than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 6,064 comparable items (median 32 GB).
Price per GB $3.90 per GB
Cheaper than about 82% 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 numberMR21300-924K12
Total capacity768 GB (12 × 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

5 more in the same range

Questions about this item

Does my server need 288-pin DDR4 RDIMM slots to accept these 12 modules?

Yes, the kit contains twelve 288-pin DDR4 RDIMM modules, so the motherboard must provide twelve compatible registered DIMM slots.

Can I mix these CL19 2666 MHz registered ECC sticks with older unbuffered DDR4 DIMMs I already have?

No, registered ECC RDIMMs cannot be mixed with unbuffered memory; the motherboard requires all slots to use registered modules of the same type.

How do I verify the full 768 GB is recognised at 2666 MHz after installation?

Check the BIOS memory information or the operating system's system report; both should show 768 GB total capacity running at 2666 MT/s with ECC active.

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