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Green bare circuit board DDR4 RDIMM memory module with black chips no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR4 2933MHz PC4-23400 2Rx4 1.2V CL21 288-PIN ECC Registered RDIMM memory upgrade

SKU CH-5MFP-P8A3A

64 GB DDR4 2933 MHz ECC Registered RDIMM with CL21 latency and 1.2 V operation, verified for the ASUS Pro WS C422-ACE workstation motherboard

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

Size 64GB

  • 64 GB capacity expands server memory headroom for demanding workloads
  • ECC and registered design detects and corrects single-bit errors while buffering signals for stable full-population operation
  • DDR4 2933 MHz CL21 timing matches the memory controller specification for rated-speed performance
  • 288-pin RDIMM form factor fits the ASUS Pro WS C422-ACE workstation motherboard slot requirements
  • 2 V operating voltage reduces power draw per module compared to higher-voltage alternatives

Exact-Match Server Upgrade

This 64GB DDR4-2933 module is built as a direct replacement for the ASUS Pro WS C422-ACE workstation motherboard. It delivers the precise rank, voltage and timing the platform's memory controller expects so the system recognises the full capacity at rated speed.

Registered ECC Stability

The 288-pin RDIMM form factor uses registered architecture to offload the memory controller, allowing every slot to run fully populated without signal degradation. ECC corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots in production workloads.

CL21 1.2V 2Rx4 Specification

CAS latency of 21 cycles at 1.20 volts with a 2Rx4 organisation is the single parameter set that decides whether this module will initialise correctly on your board. Verify your system manual for supported capacities and approved population order before purchase.

How it compares

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

Price $391.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.12 per GB
Cheaper than about 64% 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 nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR23400-924K1
Total capacity64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS
In the box
Included items64 GB DDR4 2933 MHz PC4-23400 2Rx4 1.2 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What DDR4 speed and data rate does this 64GB module run at?

This module operates at DDR4 2933 MT/s, which is the PC4-23400 data rate. The CAS latency is CL21 and the voltage is 1.20 V.

What motherboard slot and form factor does this RDIMM require?

It uses the 288-pin DDR4 RDIMM form factor. The ASUS Pro WS C422-ACE workstation motherboard requires this registered DIMM type, not a UDIMM or SODIMM.

How should I install this kit and what population rule is often missed?

Install the 288-pin RDIMM into the correct slot following the motherboard manual's DIMM population order. The step most often missed is verifying the approved slot sequence for full-capacity operation.

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