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Green printed circuit board with 288 gold contacts and black memory chips on both sides

NEMIX RAM

NEMIX RAM 128GB DDR4 3200MHz PC4-25600 2Rx4 CL22 1.2V 288-Pin ECC Registered RDIMM Memory Upgrade

SKU CH-3MC7-RAVJ1

128GB DDR4 3200MHz registered ECC RDIMM built for the Supermicro X12SPA-TF motherboard

  • Capacity128GB
  • Type288-Pin DDR4 RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.20V
  • ECCYes

Size 128GB

Show 8 more configurations
  • 128 GB capacity supports large workloads
  • DDR4 3200 MHz speed delivers rated throughput
  • Registered ECC architecture prevents silent data corruption
  • 2Rx4 CL22 1.2 V matches controller expectations
  • 288-pin RDIMM form factor fits Supermicro X12SPA-TF

Exact-Match Server Upgrade

This NEMIX RAM kit delivers 128GB of DDR4 3200MHz PC4-25600 memory in a single 288-pin RDIMM. It operates at 1.2V with CL22 latency and uses a 2Rx4 registered ECC configuration designed for the Supermicro X12SPA-TF motherboard. The module arrives new and ready for installation.

For Verified Platform Builders

This memory suits administrators upgrading or repairing the specific Supermicro X12SPA-TF platform where the board's population rules call for a registered 2Rx4 DIMM at this speed and voltage. Builders working with consumer desktop boards, laptops, or servers that require unbuffered UDIMMs or SODIMMs cannot use this module. Systems limited to lower maximum capacities or different rank structures should look elsewhere.

Capacity and Headroom

The 128GB density provides substantial headroom for virtualisation hosts, in-memory databases, and heavy multi-tenant workloads that benefit from maximum DIMM-slot utilisation. Registered buffering allows full-speed operation across all populated slots without loading down the memory controller. Workloads exceeding this single-module capacity or requiring higher frequencies than 3200MHz will need a different solution.

Highlights

  • 128 GB capacity supports large workloads
  • DDR4 3200 MHz speed delivers rated throughput
  • Registered ECC architecture prevents silent data corruption
  • 2Rx4 CL22 1.2 V matches controller expectations
  • 288-pin RDIMM form factor fits Supermicro X12SPA-TF

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR4 ECC RDIMM Registered Server Memory
Part NumberMR25600-724K1
Capacity128GB
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 Content128GB 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

Does my Supermicro X12SPA-TF motherboard need to support 288-pin DDR4 RDIMM modules for this 128GB kit to work?

Yes, the X12SPA-TF requires 288-pin DDR4 RDIMM modules; this kit matches that exact form factor and will not fit UDIMM or SODIMM slots.

Can I mix these 2Rx4 registered ECC modules with existing 1Rx4 or 2Rx8 RDIMMs on the same X12SPA-TF board?

Mixing ranks is possible but the board's population rules dictate slot order; consult the motherboard manual for the approved sequence to avoid reduced speed or capacity.

How do I confirm the system sees the full 128GB at 3200MHz with ECC active after installation?

Enter the BIOS/UEFI on first boot and verify total memory shows 128GB, speed reads 3200MHz (PC4-25600), and ECC status is reported as enabled or active.

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