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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB 8x16GB DDR5-4800 ECC RDIMM CL40 1Rx8 1.1V Supermicro H14SST-G memory upgrade

SKU CH-TMR5-3F0J9

128 GB DDR5-4800 ECC registered server kit of eight 16 GB modules at CL40 and 1.1 V, validated for Supermicro H14SST-G motherboards

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 8X16GB

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  • Exact-match 128 GB kit for Supermicro H14SST-G runs at rated DDR5-4800 speed
  • Registered ECC architecture corrects single-bit errors preventing silent data corruption
  • 1Rx8 1.1 V CL40 modules match the memory controller timing expectations
  • Eight 16 GB 288-pin RDIMMs populate every slot at full capacity
  • Lifetime replacement warranty with free US-based technical support included

Exact-match DDR5 server kit

This 128GB kit contains eight 16GB DDR5-4800 RDIMMs built to the precise rank, voltage and timing the Supermicro H14SST-G motherboard expects. Registered ECC architecture with CL40 latency and 1.1V operation lets every slot run fully populated at rated speed. It is designed for administrators who need guaranteed capacity recognition without manual tuning. Buyers who need UDIMM, SODIMM or non-ECC modules should look elsewhere.

Straightforward slot installation

The 288-pin RDIMM form factor drops into the board's DIMM slots using standard server procedure; no heat spreader means clearance is not a concern. Consult the motherboard manual for the approved population order before seating all eight modules, as population rules vary by platform. Skipping that step is the most common reason a full kit does not post at full capacity.

DDR5-4800 registered ECC spec

The single specification that decides fitment is the DDR5-4800 (PC5-38400) registered ECC RDIMM profile with 1Rx8 organisation, CL40 timing and 1.1V voltage. If your system requires a different speed, rank structure, voltage or unbuffered memory, this kit will not be recognised or will run at reduced capability.

How it compares

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

Price $3,322.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.96 per GB
Pricier than about 71% 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 numberMR38400-618K8
Total capacity128 GB (8 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 8 × 16 GB DDR5 4800 MHz PC5-38400 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How can I confirm the kit is running at DDR5-4800 with CL40 and ECC active after installation?

Enter the server BIOS or UEFI and verify the memory speed reads 4800 MT/s, CAS latency shows 40, and ECC status is reported as enabled for all 128 GB.

What does the package contain and is anything else required to install it in a Supermicro H14SST-G?

The box includes eight 16 GB DDR5-4800 1Rx8 ECC RDIMM modules (128 GB total); no extra cables, brackets or heat spreaders are needed for the 288-pin slots.

Should I choose this 8 x 16 GB kit or a different capacity for the H14SST-G?

Select this 128 GB kit when your workload needs the full eight-module population at 4800 MT/s with registered ECC; choose a smaller kit only if the board manual limits total capacity or slot count.

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