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Green bare circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 CL52 1.1V 2Rx4 ECC Registered RDIMM memory upgrade for Supermicro H13SST-GC

SKU CH-H080-QAWK3

128 GB DDR5 6400 CL52 1.1 V ECC registered RDIMM verified for the Supermicro H13SST-GC motherboard

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact-match 128GB DDR5-6400 CL52 1.1V 2Rx4 Registered ECC RDIMM for full-capacity recognition
  • Verified fitment for Supermicro H13SST-GC motherboard with required 288-pin RDIMM form factor
  • Enterprise stability via registered architecture offloading memory controller and ECC correcting single-bit errors
  • Check your server manual for supported capacities and DIMM population order before installation
  • Lifetime replacement warranty with free US-based technical support included

System-Specific 128 GB DDR5 RDIMM

This NEMIX RAM module is a 128 GB DDR5-6400 Registered ECC RDIMM built for the Supermicro H13SST-GC motherboard. It targets server administrators who need exact-match capacity and timing for production workloads.

288-Pin Registered Form Factor

The 288-pin RDIMM fits the board's registered memory slots and follows its population rules. Registered architecture buffers the command bus so every slot can run fully populated at rated speed, while ECC corrects single-bit errors without halting the system.

CL52 1.10 V Sustained Operation

Rated CL52 at 1.10 V, the module maintains its latency and voltage envelope under continuous load. The 2Rx4 organisation keeps signal integrity stable across all ranks during extended compute tasks.

How it compares

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

Price $4,771.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $37.28 per GB
Pricier than about 90% 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 numberMR51200-724K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 2Rx4 registered ECC modules hit a thermal or power limit first during sustained server workloads?

Registered RDIMM architecture offloads the memory controller so every slot runs fully populated at full capacity, while ECC corrects single-bit errors on the fly.

How much noise and heat do the 1.1 V DDR5 6400 modules produce when running all day in a populated chassis?

Modules operate at 1.1 V with no heat spreader; they rely on chassis airflow and generate minimal acoustic noise.

What motherboard and DIMM slots must already be present for this 288-pin RDIMM kit to function?

Requires a Supermicro H13SST-GC motherboard with DDR5 288-pin RDIMM slots and a population order that supports 2Rx4 registered ECC modules.

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