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Green bare circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 8GB DDR4 3200 CL22 ECC UDIMM ASRock B550 memory upgrade

SKU CH-YG9J-1D7VG

8GB DDR4 3200 ECC unbuffered UDIMM validated for ASRock B550 server motherboards

  • Total capacity8 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection guards data integrity on ASRock B550 boards
  • DDR4 3200 speed lifts throughput for server workloads
  • 2 V operation keeps power draw low
  • 288-pin UDIMM fits straight into compatible slots
  • Single-rank 1Rx8 layout simplifies memory population

ASRock B550 ECC UDIMM upgrade

This 8 GB DDR4 module is built for ASRock Rack B550D4 motherboards that require ECC unbuffered memory. It targets administrators and builders who need error-correcting capacity for stable server or workstation operation. The single rank design fits standard 288-pin slots without registration overhead.

No accessories or software included

The package contains only the memory stick itself. No heat spreader, cables, configuration utilities or diagnostic tools are supplied. Installation relies on the motherboard firmware to detect the JEDEC profile automatically. Buyers who want RGB lighting, bundled software suites or extra mounting hardware will not find them here.

3200 MT/s CL22 at 1.20 V decides fit

The module runs at DDR4 3200 with PC4-25600 bandwidth and CAS latency 22. If the target board demands a different speed grade, lower latency or registered DIMMs, this part will not meet the requirement. Compatibility is limited to the listed ASRock Rack B550D4 models.

How it compares

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

Price $63.99
Cheaper than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $8.00 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 numberME25600-818K1
Total capacity8 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 items8 GB (1 × 8 GB) DDR4 3200 MHz PC4-25600 1Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM

Questions about this item

Will the 1Rx8 ECC UDIMM need any periodic maintenance or replacement once installed?

ECC UDIMMs have no moving parts or serviceable components; they remain in service until a memory error occurs or the system is upgraded.

What limit appears first when the module runs continuously at DDR4 3200 CL22?

The CL22 latency at 3200 MT/s sets the throughput ceiling before thermal or voltage constraints become relevant.

How much heat and power does the 1.20 V unbuffered stick produce under all-day load?

At 1.20 V the module draws minimal power and runs cool enough that no heat spreader is required.

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