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Two green DDR4 RDIMM sticks with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2 x 128GB) DDR4 3200MHz ECC Registered RDIMM memory upgrade

SKU CH-FENM-J4W59

256 GB dual-module DDR4 kit with ECC and registered buffering for Supermicro X12SPA-TF servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.20V
  • ECCYes

Size 256GB 2X128GB

Show 8 more configurations
  • 256 GB capacity in a 2 x 128 GB kit for high-density server workloads
  • DDR4 3200 MHz PC4-25600 speed rated for full-performance operation
  • CL22 latency and 1.2 V voltage match the memory controller's exact timing requirements
  • ECC and registered design correct single-bit errors and offload the controller for stable full-population runs
  • 288-pin RDIMM form factor verified for the Supermicro X12SPA-TF motherboard

Exact-match DDR4 kit

This NEMIX RAM kit delivers 256GB as two 128GB DDR4-3200 registered ECC RDIMMs. Each module runs at 1.2V with CL22 timing in a 2Rx4 organisation. The 288-pin form factor matches the Supermicro X12SPA-TF motherboard slot and population requirements.

Suited for registered-ECC servers

Server administrators who need the precise rank, voltage and timing combination this board expects will find the kit recognised at full capacity and rated speed. Builders using unbuffered UDIMM or SODIMM slots, or systems that do not support registered ECC modules, cannot use this memory.

Registered ECC with 2Rx4 rank

The registered architecture offloads the memory controller so every populated slot runs at full capacity, while ECC corrects single-bit errors on the fly. This single specification decides whether the kit is the right part for your Supermicro X12SPA-TF configuration.

Highlights

  • 256 GB capacity in a 2 x 128 GB kit for high-density server workloads
  • DDR4 3200 MHz PC4-25600 speed rated for full-performance operation
  • CL22 latency and 1.2 V voltage match the memory controller's exact timing requirements
  • ECC and registered design correct single-bit errors and offload the controller for stable full-population runs
  • 288-pin RDIMM form factor verified for the Supermicro X12SPA-TF motherboard

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR4 ECC RDIMM Registered Server Memory
Part NumberMR25600-724K2
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR4 ECC RDIMM Motherboard Compatible
Package Content256GB 2X128GB DDR4 3200MHz PC4-25600 2Rx4 1.2V 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 Supermicro X12SPA-TF motherboard?

Yes, the kit uses the 288-pin Registered DDR4 form factor that the X12SPA-TF requires; it is not a UDIMM or SODIMM, so it matches the board's DIMM slots exactly.

What is the correct installation order for the two 128GB modules on the X12SPA-TF?

Consult the motherboard manual for the approved DIMM population sequence; the board's memory-controller rules dictate which slots must be filled first for full 256GB recognition at DDR4 3200 speed.

Do these ECC Registered modules need any firmware updates or battery replacements over time?

No firmware or battery maintenance is required; the modules are passive DDR4 1.20V components, and ECC error correction operates automatically for the life of the hardware.

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