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Eight green DDR4 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 1TB 8x128GB DDR4 3200MHz CL22 2Rx4 ECC RDIMM memory upgrade

SKU CH-KNAB-5J5XC

1TB DDR4-3200 registered ECC RDIMM kit (8 × 128 GB, 2Rx4, CL22, 1.2 V) validated for Supermicro X12SPA-TF

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 1TB 8X128GB

Show 8 more
  • 1TB kit runs at full rated speed with exact-match 3200MHz CL22 timing
  • ECC and registered design corrects errors and offloads the controller for stable full-capacity operation
  • 8x128GB 2Rx4 modules populate every slot at 1.2V without downclocking
  • 288-pin RDIMM form factor fits the Supermicro X12SPA-TF motherboard precisely
  • Built with major OEM chips and backed by lifetime replacement support

Server Memory Kit for Supermicro X12SPA-TF

This 1 TB kit contains eight 128 GB DDR4 RDIMM modules rated at 3200 MHz with CL22 latency and 1.2 V operation. It is built as a Registered ECC 2Rx4 configuration that matches the memory controller requirements of the Supermicro X12SPA-TF motherboard.

Sustained Load Behaviour

Registered architecture buffers address and command signals so the memory controller remains stable when all eight slots are populated at full capacity. ECC circuitry corrects single-bit errors in real time, preventing silent data corruption during long compute runs.

Thermals Noise and Power

Modules run at the standard 1.2 V DDR4 voltage without heat spreaders, relying on server chassis airflow for cooling. The registered design reduces electrical load on the controller, keeping power draw predictable under continuous operation.

How it compares

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

Price $7,044.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $7.04 per GB
Cheaper than about 57% 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 numberMR25600-724K8
Total capacity1 TB (8 × 128 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 items1 TB 8 × 128 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 much power does each 128 GB DDR4-3200 RDIMM draw at its rated 1.2 V?

Each module runs at 1.2 V, the standard DDR4 voltage, so power draw per DIMM is low and within normal server thermal envelopes for 2Rx4 registered ECC memory.

What motherboard slot type and CPU memory-controller support are required for this 8×128 GB DDR4-3200 2Rx4 ECC RDIMM kit?

The kit needs a motherboard with 288-pin DDR4 RDIMM slots and a CPU memory controller that supports registered ECC DDR4-3200 at 2Rx4 density, such as the Supermicro X12SPA-TF.

Will these 2Rx4 DDR4-3200 RDIMMs work alongside older 1Rx4 or 2Rx8 DDR4 modules in the same server?

Mixing different rank architectures (2Rx4 with 1Rx4 or 2Rx8) is not recommended; the memory controller expects uniform rank-per-channel layout for stable operation at full 3200 MT/s.

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