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Four green DDR5 RDIMM sticks with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM MR38400-328K4 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM GIGABYTE MZ33-CP1

SKU CH-H38Q-WA6J5

128GB DDR5-4800 ECC registered RDIMM kit (4×32GB, CL40, 1.1V) validated for GIGABYTE MZ33-CP1 motherboards

  • 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

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  • 128 GB total capacity for memory-intensive workloads from four 32 GB modules
  • DDR5-4800 speed with CL40 latency matches the board's rated specification
  • Registered ECC architecture corrects single-bit errors to prevent data corruption
  • 1 V operating voltage reduces power draw at full load
  • Validated for GIGABYTE MZ33-CP1 motherboard to ensure full-slot recognition

Verified DDR5 4800 ECC RDIMM kit

This 128 GB kit contains four 32 GB DDR5 4800 registered ECC modules built to the exact PC5-38400 2Rx8 1.1 V CL40 specification that the Gigabyte MZ33-CP1 memory controller expects. It is intended for administrators upgrading or populating that specific server board with validated memory.

Registered architecture for full population

The registered design offloads the memory controller so every 288-pin slot can run fully populated at rated speed without signal degradation. ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots in production workloads.

128 GB capacity with DDR5 headroom

Four dual-rank modules deliver 128 GB of error-corrected capacity for virtualisation, databases or compute clusters running on the MZ33-CP1 platform. The kit stops at the board's supported DDR5 4800 ceiling; workloads needing higher transfer rates or larger per-DIMM densities will require a different platform.

How it compares

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

Price $3,283.99
Pricier than about 74% 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 $25.66 per GB
Pricier than about 70% 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 numberMR38400-328K4
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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGIGABYTE
In the box
Included items128 GB 4 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the CL40 latency become a bottleneck during sustained heavy workloads?

CL40 is the rated CAS latency at DDR5 4800; the registered buffer and ECC logic keep every cycle predictable so the controller never waits longer than specified.

What is the thermal and acoustic impact of four 1.10 V registered DIMMs in a fully populated server?

No heat spreaders are fitted; each module runs at 1.10 V so power draw stays low and the only noise comes from the chassis fans moving air across the bare PCBs.

Which motherboard must already be installed for this 128 GB kit to function as intended?

The kit is validated for the GIGABYTE MZ33-CP1 motherboard; it requires 288-pin DDR5 RDIMM slots that support registered ECC memory.

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