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Eight green DDR4 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR4 3200 256GB 8x32GB CL22 1.2V ECC RDIMM Supermicro X12SPA-TF memory upgrade

SKU CH-K5H3-WG712

A 256GB DDR4-3200 ECC registered memory kit of eight 32GB RDIMMs at CL22 and 1.2V, validated for the Supermicro X12SPA-TF motherboard

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered

Size 256GB 8X32GB

Show 8 more
  • 256 GB total capacity from eight matched 32 GB modules
  • DDR4 3200 speed with CL22 latency at 1.2 V
  • Registered ECC RDIMM architecture prevents data corruption
  • 2Rx8 dual-rank layout fully populates every slot
  • Exact-fit kit validated for Supermicro X12SPA-TF motherboard

Exact-match upgrade for Supermicro X12SPA-TF

This 256GB kit contains eight 32GB DDR4 RDIMMs built to the board's precise specifications. Registered ECC architecture and 1.2V operation ensure the memory controller recognises every module at its rated 3200MHz speed without manual tuning.

Registered ECC RDIMM form factor

The 288-pin Registered design with 2Rx8 organisation is the only module type the X12SPA-TF accepts for full-capacity population. Unbuffered UDIMMs or SODIMMs will not fit the slot or function with the server's memory controller.

256GB capacity across eight slots

Eight populated slots deliver the maximum density this kit provides, giving virtualisation hosts or database nodes ample headroom for concurrent workloads. Systems requiring more than 256GB or a different rank configuration will need a separate memory solution.

How it compares

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

Price $2,501.99
Pricier than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $9.77 per GB
Typical for this category: the median of 20,941 items is $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 numberMR25600-328K8
Total capacity256 GB (8 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 8 × 32 GB DDR4 3200 MHz PC4-25600 2Rx8 1.2 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What does the 3200MHz speed mean once the modules are installed in the Supermicro X12SPA-TF?

The kit runs at DDR4 3200 (PC4-25600) data rate when the memory controller supports that frequency; the registered design lets all eight slots operate at the rated speed without downclocking.

How does the 288-pin RDIMM interface limit or enable use on this motherboard?

The 288-pin Registered DIMM form factor matches the X12SPA-TF memory slots exactly; it cannot be used in UDIMM or SODIMM sockets and requires the board's registered-memory population rules to be followed.

What physical clearance or mounting does the 8x32GB kit need inside the server?

Each module is a standard-height 288-pin RDIMM with no heat spreader, so it fits the regular DIMM slots on the X12SPA-TF without extra clearance for tall heatsinks or liquid-cooling blocks.

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