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Two green DDR5 RDIMM modules with black chips and gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM DDR5 4800 256GB 2x128GB ECC RDIMM CL40 1.1V Supermicro H13DSG-OM

SKU CH-82ZE-RES5B

256 GB DDR5 server kit with two 128 GB registered ECC modules running at 4800 MHz CL40 1.1 V, validated for the Supermicro H13DSG-OM motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 30 more
  • 256 GB total capacity in a 2 x 128 GB kit for high-density server workloads
  • DDR5 4800 speed rated at PC5-38400 delivers rated bandwidth for the platform
  • Registered ECC architecture with 2Rx4 organization corrects single-bit errors and offloads the memory controller
  • 1 V operation at CL40 matches the motherboard's voltage and timing requirements
  • Verified fitment for the Supermicro H13DSG-OM motherboard using the 288-pin RDIMM form factor

Supermicro H13DSG-OM DDR5 kit

This 256GB kit contains two 128GB DDR5 4800 RDIMM modules built to the exact rank, voltage and timing the Supermicro H13DSG-OM memory controller expects. Registered ECC architecture offloads the controller so every slot can run fully populated at rated speed while correcting single-bit errors before they cause data corruption or unplanned reboots. It targets administrators who need maximum supported capacity in a validated server platform.

Pre-installation checks

Verify the motherboard manual for approved DIMM population order, maximum capacity per channel and any BIOS version requirements before ordering. The board requires 288-pin Registered RDIMMs; UDIMM or SODIMM modules will not fit or function. Confirm that your configuration supports 2Rx4 organisation at 1.1V to avoid recognition or stability issues.

Thermals and power

Modules operate at the standard DDR5 1.1V without heat spreaders, relying on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping keep system power draw predictable when all slots are populated. Expect quiet operation in a properly ventilated server enclosure under normal workloads.

How it compares

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

Price $8,350.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $32.62 per GB
Pricier than about 90% 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 numberMR38400-724K2
Total capacity256 GB (2 × 128 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 items256 GB 2 × 128 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

Does the kit ship as two 128 GB DDR5 RDIMMs or do I need to buy anything else?

The package contains two 128 GB DDR5 4800 RDIMMs for a total of 256 GB; no extra modules or accessories are required.

My board has eight slots — should I populate all of them with this 2Rx4 kit or use a different capacity?

This 256 GB kit fills two slots with 2Rx4 registered ECC modules; consult the H13DSG-OM manual for the approved population order before adding more DIMMs.

What does the 4800 MT/s rating mean once the modules are installed in the Supermicro H13DSG-OM?

The memory controller will run the kit at DDR5-4800 with CL40 timings at 1.1 V, delivering the rated bandwidth without manual tuning.

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