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Two green DDR4 RDIMM sticks without heat spreaders, 288 pins, 256GB kit

NEMIX RAM

NEMIX RAM DDR4 ECC RDIMM 256GB (2x128GB) 3200MHz CL22 2Rx4 Registered Server Memory Upgrade

SKU CH-53FC-9H3HN

256 GB DDR4 ECC registered server memory kit in two 128 GB modules running at 3200 MHz with CL22 latency and 1.2 V operation

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 8 more
  • 256 GB capacity from two 128 GB modules lets you fully populate supported slots
  • DDR4 3200 speed rated at PC4-25600 delivers the bandwidth the memory controller expects
  • Registered ECC architecture with 2Rx4 organisation offloads the controller and corrects single-bit errors
  • 2 V operation at CL22 matches the voltage and timing the platform requires
  • Validated for Supermicro X12SPT-G and X12SPT-GC motherboards with 288-pin RDIMM form factor

Server Memory Kit

This 256 GB kit provides two 128 GB DDR4 registered DIMMs for Supermicro X12SPT-G and X12SPT-GC motherboards. The modules deliver ECC error correction and registered buffering so fully populated channels run at the rated 3200 MT/s without instability. It targets administrators who need maximum capacity per slot in supported Supermicro platforms.

Registered ECC Upgrade

Replacing unbuffered or lower-capacity DIMMs with this 2Rx4 registered kit lets the memory controller drive every slot at full speed and capacity. The jump is worth it when your workload demands the full 256 GB at PC4-25600 and the motherboard population rules call for registered modules rather than UDIMMs or SODIMMs.

Sustained Load Behaviour

Under continuous operation the registered architecture offloads electrical loading from the controller, while on-die ECC corrects single-bit errors before they affect data integrity. The 1.2 V CL22 timing profile remains stable across all populated slots, preventing the throttling or unplanned reboots that can occur with unbuffered configurations at this density.

How it compares

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

Price $1,791.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $7.00 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 numberMR25600-724K2
Total capacity256 GB (2 × 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 items256 GB 2 × 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

Will the 288-pin RDIMM modules fit the DIMM slots on my Supermicro X12SPT-G motherboard?

Yes, the kit uses the 288-pin Registered DDR4 form factor that the X12SPT-G and X12SPT-GC boards require; UDIMM or SODIMM modules will not fit.

What is the correct population order when installing both 128 GB sticks on the X12SPT-G?

Follow the motherboard manual's approved DIMM population sequence for dual-rank Registered ECC modules so the memory controller recognises the full 256 GB at 3200 MHz.

Does the absence of a heat spreader mean I need to add active cooling for these 2Rx4 modules?

The modules run at the standard 1.20 V DDR4 voltage and are designed for normal server airflow; no additional cooling is required beyond the chassis fans.

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