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Four green 288-pin DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 256GB (4x64GB) 4800MHz ECC Registered RDIMM 2Rx4 CL40 1.1V Supermicro H13DSG-O-CPU

SKU CH-MMBP-BGNVB

256 GB registered ECC DDR5 kit with four 64 GB modules running at 4800 MHz CL40 1.1 V, validated for Supermicro H13DSG-O-CPU motherboards

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

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  • 256 GB total capacity lets you run large workloads on the Supermicro H13DSG-O-CPU
  • Registered ECC architecture offloads the controller and corrects single-bit errors for production stability
  • DDR5 4800 MT/s speed delivers rated bandwidth at 1.1 V for efficient server operation
  • 2Rx4 288-pin RDIMM form factor matches the board's memory population rules exactly
  • Four 64 GB modules populate every slot at full capacity without downclocking

Exact-Match Server Upgrade

This NEMIX RAM kit delivers 256GB across four 64GB DDR5 modules built to the exact rank, voltage and timing the Supermicro H13DSG-O-CPU motherboard expects. Registered ECC RDIMM architecture ensures every slot runs fully populated at the rated 4800MHz speed with CL40 latency and 1.1V operation. The 2Rx4 organisation matches the board's memory controller requirements for reliable recognition at full capacity.

Who This Suits And Who Should Look Elsewhere

System administrators expanding a Supermicro H13DSG-O-CPU platform to its maximum supported memory with validated registered ECC modules will find this kit fits the board's population rules. Buyers who need unbuffered UDIMM or SODIMM form factors cannot use these 288-pin RDIMMs in workstation or laptop slots. Anyone requiring a different total capacity or speed grade should consult the motherboard manual for approved configurations before purchasing.

Sustained Load Behaviour

Registered buffering offloads the memory controller so all four slots maintain stability when fully populated under continuous enterprise workloads. ECC circuitry detects and corrects single-bit errors on the fly preventing silent data corruption during extended compute tasks. The 1.1V operating voltage keeps power draw consistent across long-running virtualisation, database or HPC sessions without thermal throttling from the memory subsystem.

How it compares

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

Price $6,544.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.57 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 4 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Which motherboard must I already have for this 256GB DDR5 4800MHz ECC Registered RDIMM kit to work?

The kit is validated for the Supermicro H13DSG-O-CPU motherboard and requires that board's 288-pin RDIMM slots and memory-population rules.

Will these 2Rx4 1.1V modules run correctly if I keep older DDR5 RDIMMs of a different rank or voltage in the same server?

Mixing ranks or voltages is not supported; the motherboard's population rules require identical 2Rx4 1.1V modules in each channel for stable operation.

How can I confirm the full 256GB capacity and CL40 timing are active after installation?

Enter the BIOS or use a hardware-inventory tool; both should report 256GB total, DDR5-4800 speed, CL40 latency, and ECC Registered status for every slot.

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