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Six green DDR5 ECC RDIMM modules in silver anti-static tray

NEMIX RAM

NEMIX RAM 768GB (6 x 128GB) DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM server RAM

SKU CH-0Z1E-JNGKD

A 768GB DDR5 server memory kit of six 128GB registered ECC RDIMMs running at 6400MHz with 1.1V voltage and CL52 latency

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latency52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 768 GB total capacity from six 128 GB modules for large-scale workloads
  • DDR5 6400 MT/s speed delivers high bandwidth for demanding server tasks
  • ECC registered design detects and corrects errors to protect data integrity
  • Low 1.1 V operation reduces power draw in dense configurations
  • Built with major OEM Samsung Micron Hynix chips for consistent reliability

Server memory kit for registered ECC platforms

This NEMIX RAM kit delivers 768 GB of DDR5 capacity across six 128 GB registered DIMMs. It is built for enterprise servers and workstations that require error-correcting code and registered buffering. Standard desktop boards cannot use these modules.

Registered buffering and ECC protect data integrity

Each module operates at 1.1 V with a CAS latency of 52 and a 2Rx4 organisation. The registered design reduces electrical load on the memory controller, while ECC corrects single-bit errors in flight. These traits matter for virtualisation hosts, database nodes and other workloads that cannot tolerate silent corruption.

288-pin DDR5 form factor fits compatible server

The modules use the industry-standard 288-pin DDR5 RDIMM layout, so they install in any qualified server motherboard that supports DDR5 6400 registered memory. Buyers needing unbuffered DIMMs, non-ECC operation or desktop form factors should select a different product line.

How it compares

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

Price $26,079.99
Pricier than about 93% of the 6,523 comparable items (median $188.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 6,064 comparable items (median 32 GB).
CAS latency 52
Higher than about 90% of the 439 comparable items (median 40).
Price per GB $33.96 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Model namePart#: MR51200-724K6-SM-AS-1015CS-TNR
Part numberPart#: MR51200-724K6-SM-AS-1015CS-TNR
Total capacity768 GB (6 × 128 GB)
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latency52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.1 V

Questions about this item

Will the 2Rx4 ECC RDIMM modules need any periodic replacement under normal server workloads?

The DDR5 modules are solid-state with no moving parts and carry a lifetime replacement warranty, so no scheduled replacement is required.

What thermal or power limit appears first when all six 128 GB sticks run continuously at 6400 MT/s?

Each module operates at 1.1 V and the registered 2Rx4 design distributes load across the memory controller, keeping power draw within the DDR5 6400 specification.

How much heat and fan noise should I expect from the 768 GB kit during 24/7 operation?

Registered DDR5 RDIMMs run at 1.1 V with no active cooling on the modules themselves; system airflow handles the heat and adds no audible noise.

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