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Four green DDR5 RDIMM modules with black chips and gold contacts

NEMIX RAM

NEMIX RAM 128GB 4X32GB DDR5 5600 PC5-44800 CL46 2Rx8 1.1V ECC RDIMM Supermicro H14DSG-O-CPU memory upgrade

SKU CH-N75B-WHQW8

A 128 GB DDR5 registered ECC kit of four 32 GB modules running at 5600 MT/s with CL46 latency and 1.1 V operation, validated for the Supermicro H14DSG-O-CPU motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

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  • 128 GB capacity from four 32 GB modules
  • DDR5-5600 speed rated at PC5-44800
  • Registered ECC design prevents silent data corruption
  • 2Rx8 rank and 1.10 V match controller expectations
  • 288-pin RDIMM form factor fits Supermicro H14DSG-O-CPU

Exact-match DDR5 upgrade kit

This 128GB kit contains four 32GB DDR5-5600 modules built to the PC5-44800 standard with CL46 timing and 1.1V operation. The 2Rx8 registered ECC RDIMMs are spec-matched for the Supermicro H14DSG-O-CPU motherboard so the memory controller recognises the full capacity at rated speed.

Sustained-load behaviour

Registered architecture buffers each command so all four slots stay stable when fully populated under continuous server workloads. ECC corrects single-bit errors on the fly preventing silent data corruption and unplanned reboots during extended production runs.

Pre-installation checks

Verify the motherboard manual for supported capacities, approved DIMM population order and any BIOS revision requirements before ordering. This kit uses 288-pin DDR5 RDIMMs only — it will not fit UDIMM or SODIMM slots and is not compatible with other DDR generations.

How it compares

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

Price $3,664.99
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 $28.63 per GB
Pricier than about 81% 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 numberMR44800-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR5 5600 MHz PC5-44800 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How much heat does the 1.1V DDR5 5600 kit add when all four 32GB modules run continuously?

The kit operates at 1.10V with no heat spreader, so thermal output stays low; ensure your server chassis provides adequate airflow across the 288-pin RDIMM slots.

What motherboard slot type must the Supermicro H14DSG-O-CPU provide for this 128GB kit to be recognised?

The board needs four 288-pin DDR5 RDIMM slots; the modules are registered ECC 2Rx8 and will not work in UDIMM or SODIMM sockets.

Will the CL46 2Rx8 registered DIMMs run at 5600 MT/s alongside slower DDR5 modules already installed?

All populated slots run at the speed of the slowest module; mixing with lower-speed DDR5 will down-clock this kit to that lower rate.

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