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Four green DDR4 UDIMM sticks with black chips no heat spreader

NEMIX RAM

NEMIX RAM ME25600-818K4 32GB (4x8GB) DDR4 3200 ECC UDIMM memory upgrade

SKU CH-8SJ7-GWY3V

A 32 GB DDR4 3200 ECC UDIMM kit of four 8 GB modules at 1.2 V, CL22, validated for ASRock Rack B550D4 motherboards

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 32 GB kit (4 × 8 GB) expands system capacity for demanding workloads
  • DDR4 3200 speed (PC4-25600) delivers high bandwidth for server applications
  • ECC unbuffered design detects and corrects single-bit errors to protect data integrity
  • 2 V operation at CL22 latency reduces power draw while maintaining stability
  • Validated for ASRock Rack B550D4 series motherboards ensuring reliable compatibility

System-Specific DDR4 ECC Kit

This 32 GB kit contains four 8 GB unbuffered UDIMM modules built for ASRock Rack B550D4 motherboards. It targets administrators and integrators who need validated ECC memory for server or workstation deployments.

Sustained-Load Behaviour

Modules are stress-tested under load at 3200 MT/s with CL22 timings and 1.2 V operation. The 1Rx8 organisation and major-brand Samsung, Micron or Hynix ICs maintain error correction without registered buffering during continuous workloads.

Deciding Specification

ECC unbuffered UDIMM format on 288-pin DDR4 is the single attribute that determines fit. Systems requiring registered DIMMs, non-ECC memory or a different pin count cannot use this kit.

How it compares

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

Price $267.99
Cheaper than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $8.37 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 lineASRock Server Motherboard Compatible Series Memory
Model nameASRock DDR4 3200 MHz ECC Unbuffered UDIMM
Part numberME25600-818K4
Total capacity32 GB (4 × 8 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 rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock
In the box
Included items32 GB (4 × 8 GB) DDR4 3200 MHz PC4-25600 1Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

How much power do these 1.20V DDR4 modules draw under continuous load?

The kit runs at 1.20V, the standard DDR4 voltage, keeping power draw low during all-day operation.

Which motherboards must I already own for this 288-pin ECC UDIMM kit to work?

It is validated for ASRock Rack B550D4-4L, B550D4ID-2L2T, B550D4M, B550D4U and B550D4U-2T boards.

Will the CL22 3200MHz sticks run stably with slower DDR4 modules I keep installed?

The memory operates at DDR4 3200 with CL22 timing; the system will clock all installed modules to the lowest common speed.

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