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Green rectangular DDR5 RDIMM module with black memory chips, no heat spreader, 288 gold pins along bottom edge

NEMIX RAM

NEMIX RAM DDR5 128GB 4800MHz CL40 2Rx4 ECC Registered RDIMM 288-pin memory upgrade

SKU CH-HEV4-4XSXS

128 GB DDR5-4800 ECC registered RDIMM with CL40 timing, 1.1 V operation and 2Rx4 organisation for the Supermicro H13SST-G motherboard

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

Size 128GB

Show 24 more
  • 128 GB capacity lets you fully populate server slots
  • DDR5 4800 MT/s speed matches the memory controller specification
  • Registered ECC design corrects single-bit errors automatically
  • 2Rx4 1.1 V CL40 timing aligns with Supermicro H13SST-G requirements
  • 288-pin RDIMM form factor fits the board's memory population rules

Exact-match DDR5 server memory

This 128 GB DDR5-4800 Registered ECC RDIMM is built for the Supermicro H13SST-G motherboard. It delivers the precise 2Rx4 rank structure, 1.1 V operating voltage and CL40 timing the board's memory controller expects for full-capacity recognition.

Registered architecture for full-slot population

The buffered RDIMM design offloads the memory controller, allowing every supported slot to be populated at the rated 4800 MT/s speed. ECC corrects single-bit errors on the fly, protecting data integrity in production workloads. The 288-pin form factor matches the board's DDR5 DIMM sockets exactly.

Low-voltage operation at 1.1 V

Running at the standard DDR5 server voltage reduces power draw per module compared with higher-voltage alternatives. No heat spreader is fitted, so airflow across the PCB handles thermal dissipation in typical chassis configurations. Registered buffering keeps electrical loading light even with all slots filled.

How it compares

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

Price $3,965.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $30.98 per GB
Pricier than about 89% 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 numberMR38400-724K1
Total capacity128 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How much capacity does a single 2Rx4 DDR5 RDIMM provide?

Each module delivers 128 GB of registered ECC memory in a single 288-pin DDR5 RDIMM.

What voltage and thermal profile should I expect from the 1.1 V DDR5 RDIMM during continuous operation?

The module runs at 1.10 V without a heat spreader, so sustained loads rely on chassis airflow to keep temperatures in check.

Which motherboard and DIMM type must already be installed for this kit to function?

A Supermicro H13SST-G motherboard with 288-pin DDR5 RDIMM slots is required; UDIMM or SODIMM slots will not accept this module.

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