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Four green DDR5 RDIMM modules, bare circuit boards with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM MR38400-924K4 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-PGH3-W214N

Provides 256GB of DDR5 ECC registered server memory in a four-module kit running at 4800MT/s with CL40 latency

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity from four 64GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design corrects data errors automatically
  • 1V operation reduces server power draw
  • Validated for SuperMicro X13SET-G and X13SET-GC motherboards

Target Server Upgrade

This 256 GB kit contains four 64 GB DDR5 4800 CL40 ECC registered DIMMs built for Supermicro X13SET-G and X13SET-GC motherboards. It is intended for administrators who need maximum registered capacity on those specific server boards.

Registered Capacity Step

The kit replaces smaller RDIMM sets or non-ECC modules when workloads demand 256 GB of registered error-correcting memory at 1.1 V. The upgrade is worth it when the platform requires quad-rank 2Rx4 organisation and the board’s qualified-vendor list includes this part number.

Slot Population Care

Installation follows standard 288-pin DDR5 keying; the modules have no heat spreaders so adjacent clearance is tight but normal. The usual mistake is mixing these registered sticks with unbuffered DIMMs or populating slots in an order the motherboard manual does not support.

How it compares

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

Price $6,994.99
Pricier than about 83% 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 $27.32 per GB
Pricier than about 76% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz 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
Heat spreaderNo
Memory rank2Rx4
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 CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 288-pin DDR5 RDIMM form factor fit the SuperMicro X13SET-G motherboard slots?

Yes, the 288-pin DDR5 RDIMM modules are designed for the DDR5 RDIMM slots on the SuperMicro X13SET-G and X13SET-GC motherboards.

What is the correct order to populate the four 64 GB modules for proper registration?

Install the four 2Rx4 registered DIMMs in the motherboard's recommended channel sequence, usually starting with the slot furthest from the CPU, to ensure the memory controller initialises all ranks.

Will the Samsung, Micron or Hynix DRAM chips require any firmware updates over time?

The DRAM chips themselves do not receive firmware updates; stability depends on the motherboard BIOS, so apply SuperMicro BIOS revisions as they are released.

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