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

NEMIX RAM

NEMIX RAM 768GB DDR5 4800 6x128GB ECC RDIMM Supermicro H14SST-G memory upgrade

SKU CH-ER25-T8AC2

Six 128 GB DDR5 ECC registered DIMMs deliver 768 GB at 4800 MT/s with CL40 latency and 1.1 V operation for the Supermicro H14SST-G motherboard

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 6X128GB

Show 30 more
  • 768 GB total capacity from six 128 GB modules for maximum memory density
  • DDR5 4800 speed with CL40 latency delivers rated performance on the Supermicro H14SST-G
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated channels
  • 1 V operation matches the platform specification for reliable power efficiency
  • 288-pin RDIMM form factor ensures exact mechanical and electrical fit in every slot

Supermicro H14SST-G 768GB Kit

This 768GB memory kit contains six 128GB DDR5 registered ECC RDIMMs built for the Supermicro H14SST-G motherboard. It targets administrators who need the full 768GB capacity in a single validated package.

DDR5 4800 Registered ECC Limits

The modules run at DDR5 4800 with CL40 latency and 1.1V. Registered buffering allows all slots to be populated without overloading the memory controller, while ECC corrects single-bit errors. The board must accept 2Rx4 RDIMMs at this speed and voltage.

6 x 128GB 2Rx4 Population Rule

The kit delivers 768GB only when the H14SST-G supports six 128GB dual-rank modules in the required population order. If the manual limits rank count per channel or total capacity per socket, the full kit will not be recognised.

How it compares

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

Price $23,621.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $30.76 per GB
Pricier than about 88% 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 numberMR38400-724K6
Total capacity768 GB (6 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB 6 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Should I choose the 6 x 128 GB kit or a different capacity for the Supermicro H14SST-G?

The kit supplies 768 GB total across six 128 GB RDIMMs, matching the board's DDR5 4800 registered ECC requirements for full-capacity operation.

What does the DDR5 4800 rating mean once the modules are installed in the server?

The modules run at the DDR5 4800 data rate with CL40 latency at 1.10 V, delivering the exact speed and timing the memory controller expects.

How does the 288-pin RDIMM interface affect what I can populate on the motherboard?

The 288-pin registered DIMM form factor is the only type the H14SST-G accepts; UDIMM or SODIMM modules will not fit or function.

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