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Six green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM MR51200-4828K6 288GB (6×48GB) DDR5 6400 ECC RDIMM Supermicro H13SST-GC memory upgrade

SKU CH-HN3J-WYNC2

A 288 GB DDR5 ECC RDIMM kit of six 48 GB modules running at 6400 MHz CL52 1.1 V, registered for full-capacity stability on Supermicro H13SST-GC

  • Total capacity288 GB (6 × 48 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 288 GB total capacity from six 48 GB modules
  • DDR5 6400 speed with CL52 latency for rated performance
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation matches the server memory controller spec
  • Verified fitment for Supermicro H13SST-GC motherboard

Exact-match upgrade for Supermicro H13SST-GC

This 288GB kit contains six 48GB DDR5 RDIMM modules built to the exact rank, voltage and timing the motherboard expects. Registered ECC architecture lets every slot run fully populated at rated speed while correcting single-bit errors on the fly. It is intended for administrators who need maximum capacity on this specific platform.

DDR5 6400 registered ECC limits

The modules operate at DDR5 6400 (PC5 51200) with CL52 latency at 1.1V. Registered buffering reduces electrical load on the memory controller so all six slots can be filled without signal degradation. ECC provides error detection and correction, but the registered design means these DIMMs will not work in consumer boards that require unbuffered UDIMMs.

Six-module RDIMM kit, no heat spreaders

Each 288-pin DIMM uses major OEM DRAM chips and omits a heat spreader to fit tight server DIMM spacing. The 2Rx8 organisation matches the board's population rules for full-capacity operation. Buyers who need a different capacity per module or a UDIMM form factor should look elsewhere.

How it compares

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

Price $7,057.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 288 GB (6 × 48 GB)
Higher than about 81% of the 20,941 comparable items (median 32 GB).
Price per GB $24.51 per GB
Pricier than about 69% 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 numberMR51200-4828K6
Total capacity288 GB (6 × 48 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items288 GB 6 × 48 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I choose the 6×48 GB kit or a different capacity for my Supermicro H13SST-GC?

The kit provides 288 GB total across six 48 GB RDIMMs, matching the board's DDR5-6400 registered ECC specification; populate all six slots following the motherboard manual's population order for full capacity at rated speed.

What does the DDR5-6400 rating deliver once installed in the server?

The modules run at 6400 MT/s with CL52 latency at 1.1 V, giving the memory controller the exact timing and voltage it expects so the system recognises the full 288 GB and operates at the rated data rate.

How does the 288-pin RDIMM interface and registered ECC design affect real-world operation?

The registered architecture buffers address and command signals, allowing all six slots to run fully populated at 6400 MT/s, while on-die ECC corrects single-bit errors on the fly to prevent silent data corruption.

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