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Four green DDR4 UDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 CL22 ECC UDIMM for ASRock Rack E3C252D4U memory upgrade

SKU CH-V5XP-K11X8

128 GB DDR4 ECC UDIMM kit at 3200 MHz CL22, validated for ASRock Rack E3C252D4U systems

  • 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 total capacity for memory-intensive workloads
  • DDR4 3200 speed with PC4-25600 bandwidth rating
  • ECC unbuffered UDIMM protects data integrity in servers
  • CL22 latency at 1.2 V for stable operation
  • 4 × 32 GB 288-pin 2Rx8 kit validated for ASRock Rack E3C252D4U

System-specific DDR4 ECC kit

This 128GB kit contains four 32GB unbuffered UDIMMs built for ASRock Rack E3C252D4U, E3C252D4U-2T and E3C252D4ID-2T motherboards. It targets IT professionals and server builders who need validated ECC memory for mission-critical workloads.

Capacity and headroom

The four-module population fills all slots on the supported boards, delivering 128GB of registered-free ECC capacity for virtualisation, databases and large file caches. Workloads that exceed this ceiling will require a platform with higher DIMM counts or larger module densities.

CL22 latency at 3200 MT/s

Rated at DDR4 3200 (PC4-25600) with a CAS latency of 22, the kit runs at 1.20V using 2Rx8 organisation. This timing is the decisive specification for compatibility; systems that demand tighter latencies or different voltages will not accept these modules.

How it compares

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

Price $956.99
Pricier than about 60% 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 $7.48 per GB
Cheaper than about 54% of the 20,941 comparable items (median $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 numberME25600-328K4
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 systemsASRock
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

Will the 3200 MHz DDR4 ECC UDIMM run at full speed alongside older DDR4 modules I keep in the E3C252D4U?

The board runs all installed memory at the speed of the slowest module; mixing speeds will downclock this kit to match the older DIMMs.

How can I confirm the 128 GB kit is detected and running with ECC active after installation?

Enter the BIOS or UEFI and check the memory information screen — it should show 128 GB total, 3200 MT/s, and ECC enabled.

Does the package include only the four 32 GB UDIMMs or are any tools or cables supplied?

The box contains only the four 32 GB DDR4 3200 CL22 ECC UDIMMs; no tools, cables or additional hardware are included.

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