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Four green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM DDR5 4800 ECC Registered RDIMM 128GB (4×32GB) CL40 1.1V 2Rx8 Supermicro H14DSG-O-CPU memory upgrade

SKU CH-M8YY-GH6K3

128 GB DDR5 registered ECC kit (four 32 GB modules) at 4800 MHz, CL40, 1.1 V, 288-pin RDIMM validated for Supermicro H14DSG-O-CPU

  • 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 capacity across four 32 GB modules for high-density server workloads
  • DDR5-4800 speed with CL40 latency delivers rated throughput on supported platforms
  • Registered ECC architecture corrects single-bit errors and offloads the memory controller
  • 1 V operating voltage matches the motherboard's DDR5 power specification
  • 288-pin RDIMM form factor fits the Supermicro H14DSG-O-CPU memory slots

Server DDR5 4800 ECC RDIMM kit

This 128 GB kit contains four 32 GB DDR5 4800 modules built to PC5-38400 with CL40 timing at 1.10 V. Registered ECC architecture and 2Rx8 organisation match the Supermicro H14DSG-O-CPU motherboard population rules for full-capacity operation.

Builders who need Registered ECC for this board

Buyers needing unbuffered UDIMM or laptop SODIMM form factors cannot use this kit. Systems limited to lower speeds or different voltage requirements should look elsewhere.

DDR5 4800 CL40 1.10 V spec

The DDR5 4800 CL40 1.10 V rating decides whether this kit runs at its rated speed on the H14DSG-O-CPU. Verify the manual for supported population order and maximum capacity per channel before installation.

How it compares

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

Price $3,413.99
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 $26.67 per GB
Pricier than about 74% 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 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 systemsSupermicro
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

Will the 288-pin RDIMM modules fit the Supermicro H14DSG-O-CPU DIMM slots?

Yes, the 288-pin Registered DDR5 form factor matches the board's RDIMM slots exactly; UDIMM or SODIMM modules would not seat.

What population order should I follow when installing the four 32 GB sticks?

Install modules in the sequence shown in the Supermicro H14DSG-O-CPU manual so the memory controller recognises the full 128 GB at DDR5-4800.

How do I know if a module needs replacement later?

ECC corrects single-bit errors on the fly; persistent corrected-error logs or uncorrectable errors reported by the OS indicate a stick should be swapped.

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