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Four green DDR4 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 CL22 ECC UDIMM SuperMicro R12SPD-A memory upgrade

SKU CH-2Q5D-E20AH

A 128GB DDR4 3200 CL22 ECC UDIMM kit of four 32GB modules for SuperMicro R12SPD-A servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 128 GB kit for memory-intensive server workloads
  • DDR4 3200 speed with CL22 latency for responsive data handling
  • ECC unbuffered UDIMM protects against data corruption
  • 2 V operation reduces power draw in dense configurations
  • 288-pin 2Rx8 modules built with major OEM chips

System-Specific ECC UDIMM Kit

This 128GB kit contains four 32GB DDR4 3200 modules built for the SuperMicro R12SPD-A. Each stick runs at 1.20V with CL22 latency and 2Rx8 organisation. ECC unbuffered operation suits servers and workstations that require error correction without registered buffering.

Thermals and Power Profile

Modules operate at the standard DDR4 1.20V level and carry no heat spreader. Passive cooling relies on chassis airflow across the bare PCB. The low-voltage design keeps power draw modest for dense 128GB configurations in multi-slot layouts.

What the Kit Changes

The matched 4x32GB set fills four DIMM slots with validated capacity for the target platform. ECC capability adds single-bit correction for data integrity in mission-critical workloads. Unbuffered topology allows direct installation in compatible SuperMicro boards without registered-memory requirements.

How it compares

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

Price $883.99
Pricier than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.91 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR4 3200 MHz ECC Unbuffered UDIMM
Part numberME25600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (4 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

How do I install the four 32 GB DDR4 3200 CL22 ECC UDIMM modules in my SuperMicro R12SPD-A, and what step is often missed?

Power down, open the chassis, align each 288-pin module with the slot key, press firmly until both latches click, then verify all four 32 GB sticks show 128 GB total at 3200 MT/s in BIOS.

What maintenance or replacement will this 128 GB DDR4 ECC UDIMM kit need over time?

No scheduled maintenance is required; ECC corrects single-bit errors on the fly, and modules only need replacement if a DIMM fails or capacity must grow beyond 128 GB.

What limit appears first when this 1.2 V CL22 2Rx8 kit runs sustained workloads?

The CL22 latency at 3200 MT/s sets the throughput ceiling; sustained loads will hit that timing boundary before voltage or thermal limits become an issue.

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