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Green rectangular DDR4 RDIMM module with black chips and gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR4 3200MHz ECC Registered RDIMM memory upgrade

SKU CH-4JNB-H0A03

128 GB DDR4 3200 MHz ECC registered RDIMM kit using 2Rx4 modules at 1.2 V and CL22, validated for the Supermicro X12QCH+ motherboard

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 128GB

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  • 128 GB capacity supports large server workloads
  • DDR4 3200 MT/s speed matches rated bus performance
  • ECC and registered design corrects errors and offloads the controller
  • 2Rx4 rank and 1.20 V voltage align with memory-controller expectations
  • Validated for Supermicro X12QCH+ motherboard compatibility

Exact-match server upgrade

This 128GB DDR4 3200MHz ECC Registered RDIMM kit is built for the Supermicro X12QCH+ motherboard. It delivers the precise 2Rx4 rank, 1.2V voltage and CL22 timing the board's memory controller expects for full-capacity recognition at rated speed.

Thermals and power draw

Registered architecture buffers the command bus so every slot runs fully populated without overloading the memory controller. The 1.2V operating voltage keeps power draw low, while the absence of a heat spreader relies on chassis airflow for cooling.

Replaces mismatched or smaller kits

It upgrades systems running lower-capacity or unbuffered modules that cannot reach full population. The jump is worth it when your workload demands maximum registered ECC capacity and the motherboard manual confirms this exact 288-pin RDIMM configuration.

How it compares

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

Price $958.99
Pricier than about 60% 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 $7.49 per GB
Cheaper than about 54% 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 nameDDR4 ECC RDIMM Registered Server Memory
Part numberMR25600-724K1
Total capacity128 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR4 3200 MHz PC4-25600 2Rx4 1.2 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I install this 288-pin RDIMM in the Supermicro X12QCH+ and which slot order is the one people get wrong?

Power down, open the chassis, align the notch on the 288-pin RDIMM with the slot key, press firmly until both clips lock, then follow the motherboard manual's exact population sequence — usually filling the first channel of each CPU before the second — because skipping that order leaves capacity unrecognised.

What maintenance or replacement will this 128GB DDR4 3200MHz ECC Registered kit need later?

No routine maintenance is required; the modules have no heat spreader and run at 1.2V, so only a failed DIMM would need replacement, which the lifetime warranty covers.

What limit appears first when this 2Rx4 CL22 registered memory runs sustained workloads?

The registered buffer and ECC logic add a small latency overhead, so the memory controller's maximum supported rank-per-channel limit is reached before bandwidth saturates, capping total capacity per channel.

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