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Four green DDR5 RDIMM modules without heat spreaders in a kit

NEMIX RAM

NEMIX RAM 192GB (4 x 48GB) DDR5 6400 CL52 2Rx8 1.1V ECC Registered RDIMM memory upgrade

SKU CH-WMMS-1N61G

192 GB DDR5-6400 ECC registered RDIMM kit (4 × 48 GB, CL52, 1.1 V, 2Rx8) validated for Supermicro H13SST-G motherboards

  • Total capacity192 GB (4 × 48 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 192GB total capacity across four 48GB modules for maximum server density
  • DDR5-6400 speed with CL52 latency delivers rated throughput for demanding workloads
  • Registered ECC architecture with 2Rx8 organisation corrects single-bit errors and stabilises fully populated slots
  • 1V operating voltage matches platform specifications for efficient power draw
  • Validated for Supermicro H13SST-G motherboard ensuring correct 288-pin RDIMM fitment and population rules

Exact-match DDR5 upgrade kit

This 192GB kit contains four 48GB DDR5 6400 Registered ECC RDIMM modules built to the precise rank, voltage and timing the Supermicro H13SST-G memory controller expects. The 2Rx8 organization and CL52 latency let the board recognize full capacity at rated speed without manual tuning.

Thermals power and noise

Modules operate at 1.1V with no heat spreader, relying on server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller so every slot runs fully populated at full speed. ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots.

Build fit and requirements

The 288-pin RDIMM form factor fits only boards that require Registered DDR5; it will not work in UDIMM or SODIMM slots. Population order and maximum supported capacity vary by motherboard revision, so consult the system manual before installation. No heat spreader means taller CPU coolers have extra clearance above the DIMMs.

How it compares

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

Price $5,079.99
Pricier than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 192 GB (4 × 48 GB)
Higher than about 75% of the 20,941 comparable items (median 32 GB).
Price per GB $26.46 per GB
Pricier than about 73% 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 numberMR51200-4828K4
Total capacity192 GB (4 × 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 items192 GB 4 × 48 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the four 48 GB DDR5 RDIMMs on the Supermicro H13SST-G and which population step is often missed?

Install one module per channel following the board's labelled slot order; the step most builders skip is checking the manual for the exact sequence required when all four slots are filled.

What maintenance or replacement will this 192 GB DDR5 ECC RDIMM kit need over its service life?

No routine maintenance is required; if a module fails the lifetime replacement warranty covers a direct swap of the defective 48 GB stick.

What limit appears first when the Supermicro H13SST-G runs this 6400 MT/s DDR5 kit fully populated under sustained load?

The memory controller's maximum supported speed with four 2Rx8 registered DIMMs installed is the first ceiling you hit; the modules themselves are rated for 6400 MT/s at CL52 and 1.1 V.

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