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Two green DDR5 RDIMM modules with black chips, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 256GB 2x128GB 5600MHz CL46 1.1V 2Rx4 Registered Supermicro H13SSH-E memory upgrade

SKU CH-P0P1-4GAYD

256 GB DDR5 5600 MHz ECC registered DIMM kit with CL46 latency, 1.1 V operation and 2Rx4 organisation, validated for Supermicro H13SSH-E motherboards

  • 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 total capacity from two 128 GB modules
  • DDR5 5600 speed rated at PC5-44800 bandwidth
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation matches server memory controller expectations
  • 288-pin RDIMM form factor fits Supermicro H13SSH-E motherboard

Supermicro H13SSH-E DDR5 kit

This 256 GB DDR5 ECC RDIMM kit is built for the Supermicro H13SSH-E motherboard. It contains two 128 GB modules that slot directly into the board's 288-pin registered DIMM sockets. The matched pair ensures the memory controller recognises the full capacity at its rated speed without manual tuning.

Capacity and headroom

Each module delivers 128 GB in a 2Rx4 organisation, giving 256 GB total across two slots. The DDR5 5600 PC5-44800 rating and CL46 timing run at the standard 1.1 V, so the kit operates within the platform's validated electrical envelope. Populating more slots than the board's population rules allow will reduce speed or prevent boot.

Upgrade path from smaller RDIMMs

Replacing lower-capacity registered ECC modules with this kit doubles or quadruples the installed memory while keeping the same voltage and form factor. The jump is worthwhile when workloads exceed the current memory ceiling and the motherboard manual confirms support for 128 GB per slot. Systems limited to smaller ranks or unbuffered DIMMs cannot use this kit.

How it compares

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

Price $9,278.99
Pricier than about 86% 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 $36.25 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 this 256GB DDR5-5600 RDIMM kit work alongside my existing 128GB DDR5-4800 modules in the Supermicro H13SSH-E?

The kit is spec-matched to the H13SSH-E memory controller at 5600MHz CL46 1.1V 2Rx4. Mixing different speeds or ranks may force the system to run at the lowest common speed or prevent full population.

How do I confirm the 2x128GB kit is running at 5600MHz with ECC active after installation?

Enter the BIOS or use a tool like dmidecode to verify each DIMM shows 5600MHz, CL46, 1.1V, 2Rx4 Registered and that ECC status reports enabled and correctable errors counted.

Does the MR44800-724K2 box contain only the two 128GB RDIMMs or are any cables or brackets included?

The package content lists only the 256GB 2x128GB DDR5-5600 CL46 1.1V 2Rx4 288-pin ECC Registered RDIMM kit. No cables, brackets or additional accessories are included.

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