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Twelve green DDR5 RDIMM modules with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 768GB (12x64GB) DDR5 5600 CL46 2Rx4 ECC RDIMM Supermicro H13SSF

SKU CH-N154-FASTD

768 GB DDR5 5600 kit of twelve 64 GB registered ECC RDIMMs built for the Supermicro H13SSF motherboard

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 768GB total capacity from twelve 64GB modules for maximum server memory density
  • DDR5 5600 speed with CL46 latency delivers rated performance on Supermicro H13SSF
  • Registered ECC architecture corrects single-bit errors and supports full population stability
  • 1V operation at 2Rx4 rank matches exact memory controller requirements
  • 288-pin RDIMM form factor ensures correct physical fit for this motherboard

768GB DDR5 5600 ECC RDIMM kit for Supermicro H13SSF

This 12-module kit delivers 768GB of registered ECC DDR5 memory at 5600 MT/s with CL46 latency. It is built for the Supermicro H13SSF motherboard and uses the 288-pin RDIMM form factor that board requires. Each 64GB module runs at 1.1V with a 2Rx4 rank configuration. The kit targets servers that need maximum supported capacity and error correction.

Sustained load behaviour

Registered buffering reduces electrical load on the memory controller so all twelve slots can run fully populated at rated speed without downclocking. ECC corrects single-bit errors in real time, preventing silent data corruption during long-running workloads. The 1.1V operating voltage keeps power draw stable across extended periods. CL46 timing is maintained continuously under full population.

Upgrade from partial or non-ECC configurations

This kit replaces smaller-capacity RDIMM sets or unbuffered modules that cannot reach 768GB on this platform. The jump is worth it when the application demands the full memory ceiling the H13SSF supports and requires ECC protection. It is not for systems limited to fewer than twelve DIMM slots or boards that only accept UDIMM or SODIMM form factors.

How it compares

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

Price $23,740.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $30.91 per GB
Pricier than about 89% 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 numberMR44800-924K12
Total capacity768 GB (12 × 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 items768 GB 12 × 64 GB DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How much power does the 1.1V DDR5 5600 kit draw when all twelve 64GB RDIMMs run continuously?

The modules operate at 1.1V, the standard DDR5 voltage, so each 64GB RDIMM draws only the power the memory controller requests at that voltage; total draw scales with the 768GB capacity and 5600 MT/s data rate.

What motherboard slot type and population rules must my Supermicro H13SSF already provide for this 12-module kit?

The board needs twelve 288-pin DDR5 RDIMM slots and must support 2Rx4 registered ECC DIMMs at 5600 MT/s; consult the H13SSF manual for the exact population order before installing all 768GB.

Will the 2Rx4 registered ECC RDIMMs work in the same channels as any 1Rx4 or 2Rx8 DDR5 modules I keep installed?

Mixing ranks or widths in a channel can prevent the memory controller from training at 5600 MT/s; the H13SSF manual lists approved combinations, so verify the existing DIMMs match the 2Rx4 registered ECC spec before adding this kit.

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