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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 CL40 1Rx4 1.1V 128GB (4x32GB) ECC Registered RDIMM memory upgrade

SKU CH-HQK2-G4Q1A

A 128 GB DDR5 ECC registered RDIMM kit of four 32 GB modules running at 4800 MHz with CL40 latency and 1.1 V for the ASRock Rack GENOAD12M3-2Q motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 4 more
  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed with CL40 latency at 1.10 V
  • ECC and registered design corrects errors and buffers signals
  • 288-pin RDIMM form factor matches ASRock Rack GENOAD12M3-2Q requirements
  • 1Rx4 rank configuration meets the motherboard's population rules

Exact-match server upgrade

This 128GB kit delivers four 32GB DDR5-4800 registered ECC modules built to the precise rank, voltage and timing the ASRock Rack GENOAD12M3-2Q memory controller expects. It is intended for administrators who need full-capacity population without down-clocking or recognition errors.

Registered RDIMM population

The 288-pin registered architecture offloads the memory controller so every slot runs fully populated at rated speed while ECC corrects single-bit errors on the fly. No heat spreader is fitted so clearance matches the board's native DIMM spacing.

Replacing mixed or partial kits

Swapping mismatched or smaller-capacity DIMMs for this validated 4x32GB set eliminates population-rule conflicts and restores full bandwidth across all channels. The jump is worth it when current memory forces reduced speeds or leaves slots empty.

How it compares

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

Price $3,523.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $27.53 per GB
Pricier than about 77% 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 nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-314K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items128 GB 4 × 32 GB DDR5 4800 MHz PC5-38400 1Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How does the CL40 latency affect throughput when all four 32 GB RDIMMs run at 4800 MT/s under continuous load?

The CL40 timing is the rated CAS latency at DDR5-4800; with four 1Rx4 registered modules installed the memory controller operates each channel at its specified 4800 MT/s rate, so sustained throughput is limited by that speed and latency combination.

What thermal and acoustic impact should I expect from the kit when the server operates around the clock?

The modules have no heat spreader and run at 1.1 V, so they add minimal heat and no fan noise; thermal load is handled by the chassis airflow already required for the CPU and chipset.

Which motherboard and memory population rules must my system already follow for this 128 GB kit to be recognised at full capacity?

The kit is validated for the ASRock Rack GENOAD12M3-2Q motherboard and requires a platform that supports 288-pin DDR5 RDIMMs, registered ECC operation, 1Rx4 organisation, and the correct DIMM slot population order outlined in that board's manual.

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