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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 ECC RDIMM CL40 1.1V Supermicro H13SSW

SKU CH-KMZ9-1JB7M

A 128 GB kit of four 32 GB DDR5-4800 registered ECC RDIMMs at 1.1 V and CL40, built for the Supermicro H13SSW motherboard

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 24 more
  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 MT/s speed with CL40 latency
  • 10 V operation for efficient power use
  • ECC and registered design prevents data errors
  • Verified compatible with Supermicro H13SSW motherboard

128GB DDR5-4800 ECC RDIMM kit

This NEMIX RAM kit provides 128GB of DDR5 server memory as four 32GB Registered DIMMs. Each module runs at 4800MHz with CL40 latency at 1.1V. The 2Rx8 ECC RDIMM design matches the Supermicro H13SSW motherboard requirements for registered, error-correcting memory.

Who this suits and who should look elsewhere

System builders upgrading a Supermicro H13SSW motherboard with validated DDR5 Registered ECC modules. Not for desktop PCs that require unbuffered UDIMMs, laptops needing SODIMMs, or any platform that does not support 288-pin DDR5 RDIMM population rules.

The specification that decides fit

DDR5 4800 Registered ECC RDIMM with 2Rx8 organization at 1.1V CL40. The memory controller must accept this exact rank, voltage, timing, and registered architecture for the kit to be recognized at full capacity and rated speed.

How it compares

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

Price $3,284.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.66 per GB
Pricier than about 70% 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 numberMR38400-328K4
Total capacity128 GB (4 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Should I pick this 128 GB kit or look for a different capacity for my Supermicro H13SSW?

This kit delivers 128 GB across four 32 GB modules, matching the board's RDIMM slot layout and population rules for full-capacity operation.

What does DDR5 4800 actually give me once the modules are installed?

The memory runs at 4800 MT/s with CL40 latency at 1.10 V, providing the rated bandwidth and error-correcting stability the server expects.

Is the 288-pin RDIMM interface the right one for my H13SSW, and does it limit speed or capacity?

Yes, the 288-pin Registered DIMM form factor is exactly what the H13SSW requires; it supports the full 4800 MT/s speed and 128 GB capacity with ECC enabled.

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