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Four green DDR4 RDIMM sticks with black chips no heat spreader

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR4 2933 ECC RDIMM CL21 1.2V 288-Pin memory upgrade

SKU CH-CK62-WJNRS

256 GB DDR4-2933 ECC registered server memory kit with four 64 GB modules at CL21 and 1.2 V

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 256GB 4X64GB

  • 256 GB total capacity from four 64 GB modules
  • DDR4 2933 speed with CL21 latency for responsive server workloads
  • ECC registered RDIMM design protects data integrity under heavy load
  • 2 V operation reduces power draw in dense configurations
  • Validated for ASRock Rack ROMED8-2T with AMD EPYC processors

256GB DDR4 ECC RDIMM kit for ASRock EPYC servers

This 256GB kit contains four 64GB DDR4 2933 ECC registered DIMMs built for ASRock Rack ROMED8-2T motherboards with AMD EPYC processors. Each module runs at 1.2V with CL21 latency and a 2Rx4 organisation. The registered design adds a buffer that improves signal integrity in high-density server configurations.

Verify motherboard slot count

Confirm the ASRock Rack ROMED8-2T has four available DDR4 RDIMM slots and that the platform supports 256GB total memory at 2933MT/s. Check the system documentation for any population rules that require specific slot ordering or limit rank counts per channel. Ensure the BIOS is current enough to recognise 64GB 2Rx4 modules.

Suited for memory-intensive server workloads

This kit fits administrators expanding an ASRock Rack ROMED8-2T system to its full 256GB capacity for virtualisation, database or compute tasks. Builders needing non-ECC UDIMMs, lower capacities, faster speeds or modules for a different motherboard should select a product matched to those requirements.

How it compares

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

Price $1,773.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.93 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR4 2933 MHz ECC RDIMM Registered Server Memory
Part numberMR23400-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items256 GB (4 × 64 GB) DDR4 2933 MHz PC4-23400 2Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

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Questions about this item

What comes in the box and do I need any extra parts to install these modules?

The kit contains four 64 GB DDR4 2933 ECC registered DIMMs — 256 GB total. No additional components are required for installation in a compatible server.

How do I know this 256 GB (4×64 GB) kit is the right capacity for my ASRock Rack ROMED8-2T?

The kit matches the motherboard's validated 256 GB configuration using four 64 GB 2Rx4 registered modules at DDR4 2933.

What does the 2933 MT/s rating mean once the memory is running in the EPYC server?

The modules operate at DDR4 2933 (PC4-23400) with CL21 latency at 1.2 V, delivering the rated bandwidth when the platform memory controller is set to that speed.

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