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Eight green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM MR38400-618K8 128GB 8x16GB DDR5 4800 CL40 1.1V ECC RDIMM memory upgrade

SKU CH-TQEJ-0F3JT

128 GB DDR5 ECC registered server memory kit with eight 16 GB modules at 4800 MT/s, CL40, 1.1 V, validated for Supermicro H13SST-G

  • 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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  • 128 GB total capacity from eight matched 16 GB modules
  • DDR5 4800 speed with CL40 latency for rated server performance
  • 10 V registered ECC design reduces controller load and corrects errors
  • 288-pin RDIMM form factor verified for Supermicro H13SST-G motherboard
  • Lifetime replacement warranty with US-based technical support included

Exact-fit DDR5 upgrade for Supermicro H13SST-G

This 128GB kit contains eight 16GB DDR5 RDIMMs rated at 4800MHz with CL40 latency and 1.1V operation. Registered ECC architecture matches the memory controller requirements so the system recognises the full capacity and runs at the rated speed without manual tuning.

Thermals noise and power draw

Modules operate at the standard DDR5 voltage of 1.1V and have no heat spreader, relying on server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller when all slots are populated, keeping power draw predictable under sustained workloads.

What the kit changes

ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots in production environments. Registered design allows full population of every slot at the rated 128GB capacity, while the exact rank, voltage and timing specification eliminates compatibility guesswork during installation.

How it compares

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

Price $3,268.99
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 $25.54 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 numberMR38400-618K8
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 do I install the 8x16GB DDR5 4800 RDIMM kit in my Supermicro H13SST-G, and which slot-population step is commonly missed?

Follow the motherboard manual's exact DIMM population order for 1Rx8 registered modules; the step often missed is filling slots in the prescribed sequence so the memory controller recognises all 128GB at the rated 4800 speed.

What maintenance or replacement will this 128GB DDR5 ECC RDIMM kit need during its service life?

No routine maintenance is required; the modules have no heat spreader and run at 1.1V, so replacement only occurs if a DIMM fails, at which point the lifetime replacement warranty covers a swap.

What limit appears first when the 8x16GB DDR5 4800 CL40 kit runs sustained workloads on the H13SST-G?

The primary limit is the DDR5-4800 bandwidth ceiling of PC5-38400; with all eight slots populated at 1Rx8, the memory controller reaches its maximum throughput before thermal or voltage constraints become a factor.

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