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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB 8x16GB DDR5 4800 CL40 1.1V 1Rx8 ECC Registered RDIMM Supermicro H14SSL-N memory upgrade

SKU CH-CG9M-G7JKK

An eight-module kit of registered ECC DDR5 RDIMMs providing 128 GB at 4800 MT/s CL40 and 1.1 V for the Supermicro H14SSL-N motherboard

  • 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

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  • 128 GB kit installs at full rated capacity
  • 4800 MT/s DDR5 runs at spec without tuning
  • CL40 1.1 V timing matches controller expectations
  • Registered ECC corrects single-bit errors on the fly
  • 288-pin RDIMM form factor fits Supermicro H14SSL-N motherboard

Exact-Match Server Upgrade

This 128GB kit contains eight 16GB DDR5 4800 RDIMM modules built to the exact rank, voltage and timing the Supermicro H14SSL-N memory controller expects. Each stick runs at 1.1V with CL40 latency and 1Rx8 organisation so the board recognises the full capacity at rated speed.

Registered ECC Build Quality

The 288-pin Registered DIMM form factor matches the slots this motherboard requires, not a UDIMM or SODIMM. Registered architecture buffers the address and command signals so every slot stays stable when fully populated, while on-die ECC corrects single-bit errors before they reach production workloads.

Lifetime Support Bundle

The package delivers the complete 8-module kit ready for installation with no extra cables or software required. Lifetime replacement coverage and free US-based technical support back the upgrade, though builders must still verify their manual for approved population order and maximum supported capacity.

How it compares

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

Price $3,177.99
Pricier than about 73% 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 $24.83 per GB
Pricier than about 69% 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

What DDR5 speed and PC5 rating does this 128GB kit run at?

The kit operates at DDR5 4800 with a PC5-38400 data rate, delivering the exact speed the Supermicro H14SSL-N memory controller expects for full-capacity operation.

What physical form factor and pin count must the motherboard accept for these modules?

Each module is a 288-pin Registered RDIMM; the board must provide DDR5 RDIMM slots, not UDIMM or SODIMM sockets, to fit this kit.

In which order should the eight DIMMs be populated on the Supermicro H14SSL-N to avoid a no-post condition?

Follow the motherboard manual's approved population sequence for eight 1Rx8 Registered DIMMs; skipping the prescribed slot order is the most common cause of boot failure.

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