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Green bare circuit board DDR4 RDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM DDR4 3200 128GB 2Rx4 CL22 1.2V ECC RDIMM memory upgrade for Supermicro X12DPFR-AN6

SKU CH-E1DK-72C64

128 GB DDR4 3200 ECC RDIMM with 2Rx4 rank and CL22 timing, verified for the Supermicro X12DPFR-AN6 motherboard

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

Size 128GB

  • 128 GB capacity scales memory-heavy workloads
  • DDR4-3200 PC4-25600 speed matches rated controller timing
  • Registered ECC architecture prevents silent data corruption
  • 2Rx4 1.2 V CL22 spec aligns with motherboard rules
  • 288-pin RDIMM form factor fits Supermicro X12DPFR-AN6

Exact-match server upgrade

This 128GB DDR4-3200 RDIMM kit is built for the Supermicro X12DPFR-AN6 motherboard. It delivers the precise 2Rx4 registered ECC configuration that the platform expects for full-capacity recognition.

Registered ECC with 288-pin RDIMM form

Registered buffering offloads the memory controller so every slot runs fully populated at rated speed. ECC corrects single-bit errors on the fly to stop silent data corruption. The 288-pin RDIMM form factor matches the board's required slot type.

Lifetime replacement and US-based support

The module ships as a single 128GB kit with no heat spreader. Backed by a lifetime replacement warranty and free US-based technical support, it covers the service needs of production servers. Buyers needing UDIMM or SODIMM form factors cannot use this kit.

How it compares

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

Price $897.99
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 $7.02 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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

What DDR4 speed and PC4 rating does this 128 GB RDIMM run at?

It operates at DDR4 3200 with a PC4-25600 data rate, so the memory controller sees the rated throughput when all slots are populated.

Which physical slot and pin count does this module require on the Supermicro X12DPFR-AN6?

The board needs a 288-pin DDR4 RDIMM slot; this is a registered DIMM, not a UDIMM or SODIMM, so it only fits the keyed RDIMM sockets.

What population order should I follow when installing multiple 2Rx4 kits?

Consult the motherboard manual for the approved DIMM sequence; the board's population rules dictate which slots fill first for full-capacity operation.

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