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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 CL40 128GB 8x16GB ECC RDIMM memory upgrade

SKU CH-6YZ7-CEY0D

128 GB DDR5 ECC RDIMM kit with eight 16 GB modules at 4800 MHz CL40 for Supermicro H13SST-GC motherboards

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 8X16GB

Show 24 more
  • 128 GB total capacity from eight 16 GB modules
  • DDR5 4800 MT/s speed with CL40 latency
  • 10 V registered ECC RDIMM for server stability
  • 288-pin 1Rx8 form factor matches Supermicro H13SST-GC
  • Lifetime replacement warranty with US-based technical support

128GB DDR5 ECC RDIMM Kit

This 128GB kit contains eight 16GB DDR5-4800 modules built to the PC5-38400 standard. Each stick runs at 1.10V with CL40 latency and a 1Rx8 registered layout. The modules are designed as a direct upgrade for the Supermicro H13SST-GC motherboard.

Suited for servers needing maximum registered ECC

The kit targets administrators populating every slot on a compatible Supermicro board with registered ECC memory. It is not for systems that accept only unbuffered UDIMMs, for builds that require SODIMM form factors, or for platforms limited to lower-density modules.

Straightforward installation with population rules

The 288-pin RDIMMs seat like standard server memory, but the board manual dictates the exact slot order for eight modules. Skipping the prescribed population sequence is the most common reason the full 128GB is not recognised at rated speed.

How it compares

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

Price $3,666.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.65 per GB
Pricier than about 81% 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 numberMR38400-618K8
Total capacity128 GB (8 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 8 × 16 GB DDR5 4800 MHz PC5-38400 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Does my Supermicro H13SST-GC motherboard need all eight slots filled for this 128GB kit to run at DDR5 4800 CL40?

The kit is an exact-match upgrade for the Supermicro H13SST-GC; consult the board manual for its approved DIMM population order and supported capacities before installing the 8x16GB modules.

Will these registered ECC RDIMMs work if I keep older UDIMMs or SODIMMs in the same system?

This kit uses 288-pin registered RDIMMs; the motherboard requires RDIMMs and does not accept UDIMM or SODIMM form factors, so older unbuffered or laptop modules cannot be mixed.

How can I confirm the kit is running at its rated 4800 speed and CL40 timings after installation?

Enter the BIOS or use a system-information tool to verify the memory reports DDR5 4800 (PC5-38400), 1.1V, CL40, 1Rx8 registered ECC across all 128GB.

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