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Two green DDR5 RDIMM modules, bare chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 ECC RDIMM Supermicro H14SSL-NT

SKU CH-TDNR-AH3CG

256 GB DDR5-4800 ECC registered DIMM kit built for the Supermicro H14SSL-NT 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 24 more
  • 256 GB total capacity lets your Supermicro H14SSL-NT handle large workloads without swapping
  • DDR5 4800 speed with CL40 latency delivers rated throughput for the memory controller
  • Registered ECC architecture offloads the controller and corrects single-bit errors to prevent silent data corruption
  • 1 V operation matches the board's voltage requirement for stable full-population operation
  • 2Rx4 288-pin RDIMM form factor matches the motherboard's slot and population rules exactly

Exact-fit DDR5 kit for Supermicro H14SSL-NT

This 256 GB kit ships as two 128 GB DDR5 4800 registered ECC RDIMMs. Each module runs at 1.1 V with CL40 timing and a 2Rx4 organisation. The parts are validated for the Supermicro H14SSL-NT motherboard so the memory controller recognises the full capacity at rated speed.

DDR5 RDIMM registered interface limits

The 288-pin registered form factor buffers address and command signals, allowing full population without overloading the memory controller. ECC corrects single-bit errors on the fly, but the registered design is not compatible with unbuffered UDIMM slots or consumer platforms that lack registered support.

Straightforward slot installation

Align the notch on each 288-pin RDIMM with the motherboard key and press until the latches engage. Common issues include mixing registered and unbuffered modules, populating slots in the wrong order, or exceeding the board's maximum supported capacity per channel. Consult the system manual for the approved population sequence before fitting.

How it compares

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

Price $8,220.99
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 $32.11 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

Should I choose the 256GB kit or a different capacity for my Supermicro H14SSL-NT?

This 256GB kit contains two 128GB modules. Consult your motherboard manual for supported capacities and approved DIMM population order before purchase.

What does the DDR5 4800 speed mean for real-world server performance?

The modules run at 4800 MT/s with CL40 latency and 1.1V voltage, delivering the exact timing and bandwidth the H14SSL-NT memory controller expects for full-capacity operation.

How does the 288-pin RDIMM interface affect compatibility and capacity limits?

The 288-pin Registered DIMM form factor is required by the H14SSL-NT; registered architecture offloads the memory controller so every slot runs fully populated at rated speed.

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