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

NEMIX RAM

NEMIX RAM DDR5 5600 128GB (2x64GB) ECC RDIMM CL46 1.1V 2Rx4 Supermicro H14SSL-NT memory upgrade

SKU CH-C2M7-P5AWD

128 GB DDR5-5600 ECC registered RDIMM kit (2×64 GB, CL46, 1.1 V) validated for Supermicro H14SSL-NT

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 24 more
  • 128 GB capacity in a 2 × 64 GB kit for full server density
  • DDR5 5600 speed (PC5-44800) matches the motherboard's rated frequency
  • Registered ECC RDIMM with 2Rx4 rank offloads the controller and corrects single-bit errors
  • 1 V operation at CL46 meets the board's exact voltage and timing requirements
  • Verified fit for Supermicro H14SSL-NT with 288-pin RDIMM form factor

Exact-match upgrade for Supermicro H14SSL-NT

This 128GB kit contains two 64GB DDR5 5600 RDIMM modules built to the CL46 timing and 1.1V voltage the board expects. Registered ECC architecture with 2Rx4 organisation lets the memory controller address every slot at full capacity. The modules use major-brand Samsung, Micron or Hynix chips for enterprise-grade reliability.

Registered ECC RDIMM design changes server behaviour

Registered buffering offloads the memory controller so all channels run fully populated without signal degradation. On-die ECC detects and corrects single-bit errors in flight, preventing silent data corruption that can crash databases or virtual machines. The kit arrives as a matched pair so population order follows the board's validated sequence.

288-pin DDR5 modules install like standard RDIMMs

Align the key notch with the slot, press evenly until both retention clips engage, then verify population order in the motherboard manual. Common issues arise when slots are filled out of sequence or when a BIOS revision older than the board's qualified-vendor list is used. No heat spreader is fitted, so airflow across the DIMMs must be maintained by the chassis fans.

How it compares

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

Price $4,016.99
Pricier than about 77% 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 $31.38 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 numberMR44800-924K2
Total capacity128 GB (2 × 64 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 items128 GB 2 × 64 GB DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the 2Rx4 registered ECC RDIMMs need firmware updates or matching spare modules later?

The kit is an exact-match upgrade validated for the Supermicro H14SSL-NT; registered ECC architecture and 2Rx4 rank are fixed at manufacture, so no firmware updates are required and any future expansion should use identical DDR5 5600 CL46 1.1V 2Rx4 RDIMMs to keep population rules intact.

What limits sustained throughput first — the CL46 latency or the DDR5 5600 bus?

At DDR5 5600 (PC5-44800) the bus bandwidth ceiling is reached before CL46 latency becomes the bottleneck; the registered buffer and ECC add minimal overhead, so continuous workloads saturate the 5600 MT/s data rate first.

How much heat and power do two 64 GB modules draw running 24/7 at 1.1 V without heat spreaders?

Each module operates at 1.1 V with no heat spreader; registered ECC RDIMMs at this voltage typically stay well within standard server airflow limits, so ordinary chassis cooling handles the thermal load during all-day operation.

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