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Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 6400MHz CL52 2Rx8 ECC RDIMM ASRock Rack W890D8-2L2T memory upgrade

SKU CH-7KSN-EQRQP

Dual 32 GB DDR5 ECC RDIMM kit running at 6400 MHz CL52 for ASRock Rack W890D8-2L2T servers

  • Total capacity64 GB (2 × 32 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx8
  • ECC protection prevents data corruption in critical workloads
  • 6400MHz speed supports high-throughput server applications
  • Registered design improves signal integrity on the ASRock Rack W890D8-2L2T
  • 10V operation reduces power draw per module
  • 64GB kit (2×32GB) scales memory capacity for demanding tasks

64GB DDR5 ECC RDIMM kit for ASRock Rack W890D8-2L2T

This 64GB kit contains two 32GB registered DDR5 modules built for the ASRock Rack W890D8-2L2T motherboard. Each module runs at 6400MHz with a CAS latency of CL52 and operates at 1.1V. The ECC RDIMM design targets servers and workstations that require error correction and signal integrity.

288-pin DDR5 installation with registered buffering

The 288-pin DDR5 RDIMMs install into the board's standard memory slots in minutes. Registered buffering adds a clock cycle, so the memory controller must support registered DIMMs; otherwise the system will not post. No heat spreader is fitted, so airflow across the modules must be adequate for sustained server workloads.

64GB capacity with 2Rx8 organisation

The 64GB total capacity handles virtualisation, database caching and large dataset processing comfortably. Dual-rank 2Rx8 organisation increases density per channel but can limit maximum populated speed on some platforms. Workloads exceeding 64GB or requiring higher frequencies than 6400MHz will need a larger or faster kit.

How it compares

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

Price $2,198.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $34.36 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (2 × 32 GB) DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I confirm the kit is running at DDR5 6400MHz with CL52 latency after installation?

Check the memory speed and timings in the system BIOS or a hardware monitoring tool; the modules should report 6400MHz and CL52 when operating as specified.

What is included in the package and do I need any extra components for the ASRock Rack W890D8-2L2T?

The kit contains two 32GB DDR5 6400MHz ECC RDIMM modules (64GB total); no additional parts are required for installation on the compatible motherboard.

Which capacity option should I choose for the ASRock Rack W890D8-2L2T if I want 64GB in a dual-channel kit?

This 64GB kit (2 x 32GB) provides the full capacity in a matched pair designed for dual-channel operation on the W890D8-2L2T.

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