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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

  • Capacity32GB (4 x 8GB)
  • SpeedDDR4 3200 (PC4 25600)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 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.

Highlights

  • 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

Specifications

BrandNEMIX RAM
SeriesASRock Server Motherboard Compatible Series Memory
ModelASRock DDR4 3200MHZ ECC Unbuffered UDIMM
Part NumberME25600-818K4
Capacity32GB (4 x 8GB)
SpeedDDR4 3200 (PC4 25600)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemASRock
CAS LatencyCL22
Heat SpreaderNo
Type288-Pin DDR4 ECC UDIMM
Rank1Rx8
FeaturesDDR4 ECC Unbuffered UDIMM Motherboard Compatible
Package Content32GB (4X8GB) DDR4 3200MHZ PC4-25600 1Rx8 1.2V 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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