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Two green DDR5 RDIMM sticks without heat spreaders, 256GB kit

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 5600 ECC RDIMM CL46 1.1V 2Rx4 Supermicro H14SST-G memory upgrade

SKU CH-5E85-MVKMM

256 GB kit of two 128 GB DDR5 5600 ECC registered RDIMMs at CL46 and 1.1 V, validated for the Supermicro H14SST-G motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256 GB kit lets your Supermicro H14SST-G run at full rated capacity
  • DDR5 5600 CL46 timing matches the board's memory controller for stable operation
  • Registered ECC RDIMM design offloads the controller and corrects single-bit errors automatically
  • 1 V low-voltage modules reduce power draw in densely populated servers
  • 2Rx4 288-pin form factor fits the exact slots your motherboard requires

256 GB DDR5 ECC RDIMM kit for Supermicro H14SST-G

This 256 GB kit consists of two 128 GB DDR5 5600 RDIMMs built for the Supermicro H14SST-G motherboard. Registered ECC architecture and 2Rx4 organisation let the board run every slot at rated speed while correcting single-bit errors. The modules operate at 1.1 V with CL46 latency and use the 288-pin RDIMM form factor required by the platform.

Registered ECC with 2Rx4 rank layout

Registered buffering reduces electrical load on the memory controller so all channels remain stable when fully populated. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption and unexpected reboots. The 2Rx4 rank configuration matches the density the board expects, ensuring the full 256 GB is recognised without down-clocking or capacity limits.

Verify DIMM population rules before ordering

Server memory support varies by model and BIOS revision. Consult the Supermicro H14SST-G manual for approved capacities, slot population order and any firmware requirements before installation. The kit contains two 128 GB modules only; no additional cables, brackets or software are included.

How it compares

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

Price $8,754.99
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 $34.20 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 numberMR44800-724K2
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
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 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 2Rx4 registered ECC modules require any firmware updates or periodic replacement on the Supermicro H14SST-G?

The 2Rx4 registered ECC DIMMs are designed to run continuously without scheduled replacement; ECC corrects single-bit errors on the fly and the registered buffer reduces electrical load on the memory controller.

What limit appears first when the 256 GB kit runs at DDR5-5600 CL46 under sustained load?

The CAS latency of CL46 at 5600 MT/s sets the timing boundary; the memory controller will throttle before voltage or thermal limits are reached.

How much heat and power do the two 128 GB RDIMMs generate when the server runs all day at 1.1 V?

Each module operates at 1.1 V without a heat spreader; registered buffering keeps per-DIMM power low enough for standard server airflow to maintain stable temperatures.

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