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Green bare circuit board with black memory chips and gold edge contacts

NEMIX RAM

NEMIX RAM 128GB DDR4 2933MHz PC4-23400 4Rx4 CL21 288-PIN ECC Registered RDIMM memory upgrade

SKU CH-1DQY-EGTXQ

128GB DDR4 2933MHz registered ECC RDIMM with CL21 latency and 1.2V operation for ASUS WS C422 workstations

  • Total capacity128 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 128 GB capacity lets you fully populate supported ASUS WS C422 workstations
  • Registered ECC design offloads the memory controller and corrects single-bit errors on the fly
  • DDR4-2933 CL21 at 1.2 V matches the board's rated speed and voltage exactly
  • 288-pin RDIMM 4Rx4 form factor fits the required slot type without adapters
  • Built with major OEM Samsung, Micron or Hynix chips for enterprise-grade reliability

Exact-match server upgrade

This 128 GB DDR4-2933 Registered ECC RDIMM is built for administrators who need the precise rank, voltage and timing their server memory controller expects. The module is verified for the ASUS WS C422 SAGE/10G and WS C422 PRO/SE workstation boards and installs in the 288-pin RDIMM slots those platforms require.

Thermals, noise and power

Operating at 1.20 V without a heat spreader, the DIMM draws minimal power and adds no active cooling noise to the chassis. Registered buffering reduces electrical load on the memory controller, helping the system stay stable when every slot is populated at full capacity.

Rank and ECC constraint

The 4Rx4 organisation and on-die ECC are mandatory for the target motherboards; a UDIMM or non-ECC module will not be recognised at full capacity or speed. Buyers whose systems demand a different rank configuration or unbuffered memory must select another part.

How it compares

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

Price $655.99
Pricier than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.12 per GB
Cheaper than about 75% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR23400-744K1
Total capacity128 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
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS
In the box
Included items128 GB DDR4 2933 MHz PC4-23400 4Rx4 1.2 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install this 288-pin RDIMM into the ASUS WS C422 SAGE/10G motherboard, and which step is most often missed?

Power down the system, open the chassis, and insert the module into the correct DIMM slot following the motherboard manual population order; the step most often missed is verifying the approved slot sequence for 4Rx4 modules before booting.

What maintenance or replacement will this 128GB DDR4 ECC RDIMM need over its service life?

The module has no heat spreader and no moving parts, so no routine maintenance is required; replacement is only necessary if a hardware fault occurs, which is covered by the lifetime replacement warranty.

What limit appears first when this CL21 1.2V registered memory runs sustained workloads on the WS C422 PRO/SE?

The registered buffer and ECC logic keep every slot stable at the rated 2933 MT/s, so the first limit encountered is the motherboard maximum supported capacity rather than a memory timing or thermal ceiling.

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