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Green rectangular DDR4 RDIMM module with black chips on both sides no heat spreader 288 gold pins

NEMIX RAM

NEMIX RAM DDR4 ECC RDIMM 128GB 3200MHz CL22 2Rx4 1.2V 288-Pin memory upgrade

SKU CH-YP29-4VKK6

128 GB DDR4 registered ECC memory with CL22 timing and 1.2 V operation for Supermicro X12SPT-G and X12SPT-GC motherboards

  • 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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  • Full-speed recognition at 3200 MHz with CL22 timing
  • Registered ECC architecture prevents silent data corruption under load
  • 128 GB 2Rx4 module fills a single 288-pin slot
  • Exact match for Supermicro X12SPT-G and X12SPT-GC memory rules
  • Lifetime replacement warranty with US-based technical support

128 GB DDR4 ECC RDIMM for Supermicro X12SPT-G

This registered ECC module delivers 128 GB of DDR4 3200 memory for compatible Supermicro X12SPT-G and X12SPT-GC motherboards. The 2Rx4 organisation and CL22 timing match the platform's memory controller requirements for full-capacity recognition.

Who should buy this and who should not

Server administrators upgrading Supermicro X12SPT-G or X12SPT-GC systems with validated DDR4 RDIMM memory should buy this. Builders needing unbuffered UDIMM, SODIMM form factors, non-ECC memory, or capacities beyond 128 GB per module should look elsewhere.

2Rx4 registered architecture decides fit

The 2Rx4 registered design offloads the memory controller so every slot runs fully populated at rated speed. ECC corrects single-bit errors on the fly. Confirm your motherboard manual supports this rank, voltage, and population order before purchase.

How it compares

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

Price $899.99
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 $7.03 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

Will DDR4 3200 PC4-25600 run at 3200MHz on my Supermicro X12SPT-G?

Yes, the PC4-25600 rating means the module is rated for 3200MHz and the Supermicro X12SPT-G supports that speed when populated per the board's rules.

Does this 288-pin RDIMM fit the DIMM slots on a Supermicro X12SPT-GC?

The X12SPT-GC uses 288-pin DDR4 RDIMM slots; this module matches that form factor and the 2Rx4 registered layout the board expects.

What population order should I follow when installing this 128GB kit?

Install DIMMs in the sequence shown in the Supermicro X12SPT-G manual — typically filling the farthest slot from the CPU first on each channel — to ensure the 2Rx4 registered modules train at 3200MHz.

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