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Four green DDR4 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR4 2933 CL21 ECC RDIMM memory upgrade

SKU CH-F9AB-PVZMP

64 GB kit of four 16 GB DDR4-2933 ECC registered RDIMMs at CL21 and 1.2 V for ASRock Rack ROMED8-2T EPYC motherboards

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Buffer typeRegistered
  • Rated voltage1.2 V

Capacity 64GB 4X16GB

  • 64 GB kit expands server capacity
  • ECC registered design protects data integrity
  • 2933 MHz DDR4 speed supports demanding workloads
  • 2 V operation reduces power consumption
  • 288-pin RDIMM fits compatible ASRock EPYC motherboards

Compatible server memory kit

This 64GB kit contains four 16GB DDR4 RDIMM modules built for ASRock Rack ROMED8-2T motherboards. It targets IT professionals who need registered ECC memory for AMD EPYC server platforms. The modules run at 2933MHz with a CL21 latency profile.

Straightforward DIMM installation

Each 288-pin module seats in the standard DDR4 RDIMM slots without tools or cables. The registered design adds a clock cycle, so the motherboard must support registered memory or the system will not post. Mixing these with unbuffered DIMMs or populating slots in the wrong order are the most common errors.

Registered ECC with 2Rx8 organisation

The single specification that determines fit is the 2Rx8 registered ECC configuration at 1.2V. Boards that require unbuffered, single-rank or non-ECC modules will not work with this kit.

How it compares

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

Price $479.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $7.50 per GB
Cheaper than about 54% 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 numberMR23400-628K4
Total capacity64 GB (4 × 16 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 rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (4 × 16 GB) DDR4 2933 MHz PC4-23400 2Rx8 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

How do I confirm the kit runs at 2933 MT/s with CL21 after installation?

Enter the BIOS or UEFI and verify the memory frequency reads 2933 MT/s and the CAS latency shows 21 cycles; the registered ECC modules will also report ECC active in the system health screen.

What comes in the package and do I need extra parts for the ASRock Rack ROMED8-2T?

The box contains four 16 GB DDR4 288-pin RDIMMs for a total of 64 GB; no additional memory components are required for the listed motherboard.

Why choose the 64 GB 2Rx8 registered kit instead of a smaller or unbuffered option?

This 64 GB kit uses 2Rx8 registered ECC modules at 1.2 V, matching the EPYC platform requirements for the ASRock Rack ROMED8-2T, while smaller or unbuffered kits would not provide the same capacity or error correction.

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