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Green circuit board with gold edge connector and black memory chips

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 ECC Registered RDIMM 1Rx8 CL40 1.1V Supermicro H14SST-G memory upgrade

SKU CH-KN9H-8KTMB

16 GB DDR5 4800 ECC registered RDIMM, CL40 at 1.1 V, validated for Supermicro H14SST-G motherboards

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 16GB

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  • Exact-fit DDR5-4800 ECC RDIMM for Supermicro H14SST-G
  • Registered buffer offloads the memory controller for full-slot stability
  • On-die ECC corrects single-bit errors to prevent silent data corruption
  • 1 V operation at CL40 matches the board's rated timing
  • Single-rank 1Rx8 layout meets the motherboard's population rules

Exact-match DDR5 upgrade

This 16 GB DDR5 4800 RDIMM is built to the precise rank, voltage and timing the Supermicro H14SST-G memory controller expects. It installs as a 288-pin registered ECC module so the server recognises the full capacity at its rated speed without configuration changes.

Sustained enterprise stability

Registered architecture offloads the memory controller, allowing every populated slot to run at full capacity continuously. ECC corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots during long production workloads.

1Rx8 registered ECC constraint

The single-rank 1Rx8 registered ECC layout is the decisive specification; systems that require unbuffered UDIMMs, SODIMMs or a different rank configuration will not accept this module.

How it compares

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

Price $478.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.94 per GB
Pricier than about 85% 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 numberMR38400-618K1
Total capacity16 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 items16 GB DDR5 4800 MHz PC5-38400 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the 1.1 V DDR5 module run cooler than higher-voltage server memory during continuous operation?

At 1.1 V the registered DDR5 DIMM draws less power per bit than earlier server memory, reducing heat output when all slots stay populated around the clock.

What motherboard slot and memory type must my Supermicro H14SST-G already provide for this 288-pin RDIMM to function?

The board needs a DDR5 RDIMM slot; the registered 288-pin form factor and ECC signalling are required, and a UDIMM or SODIMM slot will not accept this module.

Will the CL40 1Rx8 stick work alongside other DDR5 RDIMMs I might keep in the remaining slots?

Yes, if the other modules are also DDR5 registered ECC DIMMs; the memory controller will train each rank at 4800 MT/s with CL40 timing when the population rules in the manual are followed.

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