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Eight green DDR4 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (8x32GB) DDR4 2933MHz ECC RDIMM CL21 1.2V 2Rx4 288-pin server memory upgrade

SKU CH-JSPN-XV478

Eight-module DDR4 ECC registered kit delivering 256 GB at 2933 MHz CL21 1.2 V for ASRock Rack ROMED8-2T EPYC servers

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 256GB 8X32GB

  • 256 GB total capacity across eight 32 GB modules
  • DDR4 2933 MHz speed rated at PC4-23400
  • ECC registered RDIMM design for server data integrity
  • 20 V operating voltage with CL21 latency
  • Validated for ASRock Rack ROMED8-2T EPYC motherboard

256GB DDR4 ECC RDIMM kit for ASRock EPYC servers

This 256GB kit contains eight 32GB registered DDR4 modules built for ASRock Rack ROMED8-2T motherboards with AMD EPYC processors. It targets administrators who need maximum registered ECC capacity in a single validated package.

Registered DDR4 2933 tops out at CL21 latency

The DDR4 2933 standard used here reaches its practical ceiling at CAS latency 21 with 1.20V supply. Registered buffering adds one cycle of address-command delay, so throughput scales with channel count rather than lower latency.

Eight-module 2Rx4 population fills every slot

The kit provides exactly eight dual-rank x4 modules to populate all DIMM slots on the compatible ASRock Rack ROMED8-2T platform. Systems with fewer slots or different rank-width requirements cannot use this configuration.

How it compares

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

Price $2,032.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $7.94 per GB
Typical for this category: the median of 20,941 items is $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 numberMR23400-324K8
Total capacity256 GB (8 × 32 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 (8 × 32 GB) DDR4 2933 MHz PC4-23400 2Rx4 1.2 V CL21 288-PIN ECC RDIMM Registered Server Memory KIT

Other versions of this model

5 more in the same range

Questions about this item

Should I pick the 8x32GB kit or a different capacity for my ASRock EPYC board?

The 256GB kit provides eight 32GB modules filling all slots on compatible ASRock EPYC motherboards for maximum density.

What does the 2933MHz rating mean once installed in the server?

The modules run at DDR4 2933 (PC4-23400) with CL21 latency delivering the rated throughput on supported EPYC platforms.

Does the 288-pin RDIMM interface limit anything in practice?

The 288-pin registered DDR4 form factor fits only DDR4 RDIMM slots and the registered buffer caps electrical load to one per channel.

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