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Two green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB 2x64GB DDR5 4800 ECC RDIMM Supermicro H13DSG-O-CPU-D

SKU CH-DTNC-5PFTW

A 128 GB DDR5 registered ECC memory kit built for the Supermicro H13DSG-O-CPU-D motherboard

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 30 more
  • 128 GB total capacity from two 64 GB modules
  • DDR5 4800 speed matches the board's rated frequency
  • CL40 latency and 1.1 V voltage align with controller expectations
  • Registered ECC design corrects single-bit errors on the fly
  • 288-pin RDIMM form factor fits the Supermicro H13DSG-O-CPU-D motherboard

128GB DDR5 ECC RDIMM Kit

This 128GB kit contains two 64GB DDR5 4800 registered ECC RDIMMs built for the Supermicro H13DSG-O-CPU-D motherboard. The 2Rx4 modules operate at 1.1V with CL40 timing and use 288-pin form factor. Registered buffering and on-die ECC protect data integrity in multi-socket server workloads.

Upgrade from UDIMM or lower capacity

Replaces unbuffered UDIMM modules or smaller RDIMM kits that cannot reach full slot population on this platform. The registered architecture allows every DIMM slot to run fully populated at rated speed without overloading the memory controller. The jump is worth it when your workload demands maximum capacity per channel and error correction across all ranks.

DDR5 4800 registered interface limits

DDR5 4800 bandwidth is fixed by the JEDEC base data rate; this kit cannot run faster without motherboard support for higher speeds. Registered DIMMs require a server chipset that implements the RDIMM protocol and will not function in desktop or workstation boards wired for UDIMM. Population rules in the system manual dictate which slots must be filled first for full 128GB operation.

How it compares

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

Price $3,278.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.62 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 items128 GB 2 × 64 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

Will the 288-pin RDIMM modules fit the Supermicro H13DSG-O-CPU-D motherboard DIMM slots?

Yes, the 288-pin Registered DDR5 RDIMM form factor matches the slots required by the Supermicro H13DSG-O-CPU-D motherboard.

What is the correct installation sequence for the 2x64GB kit on this board?

Consult the motherboard manual for the approved DIMM population order; install both modules in the specified slots to run the 128GB kit at DDR5-4800 CL40.

Do these Samsung, Micron or Hynix chips require any firmware updates or periodic maintenance?

No firmware updates or scheduled maintenance are needed; the ECC Registered design corrects single-bit errors automatically during operation.

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