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Two green DDR4 ECC UDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 3200 CL22 ECC UDIMM for ASRock Rack E3C252D4U memory upgrade

SKU CH-S099-45QJ1

64 GB dual-channel DDR4-3200 ECC UDIMM kit with CL22 latency and 1.2 V operation for ASRock Rack E3C252D4U systems

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 64GB dual-channel kit expands server memory capacity
  • DDR4 3200 speed accelerates data-intensive workloads
  • ECC unbuffered design protects data integrity in critical systems
  • 2V low-voltage operation reduces power draw
  • Validated for ASRock Rack E3C252D4U motherboard compatibility

System-Specific DDR4 ECC Kit

This NEMIX RAM kit delivers 64GB of DDR4 ECC unbuffered memory across two 32GB modules. It is built for IT professionals and system builders upgrading the ASRock Rack E3C252D4U platform and its listed variants. The modules operate at 3200MT/s with a CL22 latency and 1.20V voltage.

Dual-Module Configuration

The 2x32GB arrangement populates two DIMM slots with 2Rx8 organisation, enabling the board to run in dual-channel mode for maximum throughput. ECC functionality provides error detection and correction essential for server stability, while the unbuffered design keeps latency low for the supported platform. No heat spreaders are included, relying on chassis airflow.

288-Pin DDR4 ECC UDIMM Interface

Compatibility is defined by the 288-pin DDR4 ECC UDIMM form factor and the validated ASRock Rack motherboard models E3C252D4U, E3C252D4U-2T and E3C252D4ID-2T. Systems requiring registered DIMMs, a different pin count, non-ECC memory or a different DDR generation 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 $458.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $7.17 per GB
Cheaper than about 56% 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 numberME25600-328K2
Total capacity64 GB (2 × 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 items64 GB (2 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

Will the 288-pin DDR4 ECC UDIMM modules need any firmware updates or reseating over time?

No firmware updates are required for these 288-pin DDR4 ECC UDIMM modules. Once installed in the ASRock Rack E3C252D4U, they operate without further intervention. Reseating is only necessary if the system is moved or serviced.

What sustained-load limit appears first on these CL22 2Rx8 modules — bandwidth or latency?

At DDR4 3200 PC4-25600 the CAS latency of 22 cycles is the first limit you hit under sustained use. The 2Rx8 organisation keeps bandwidth available, but each access waits for the fixed CL22 timing.

How much heat and power do the 1.2 V Samsung, Micron or Hynix chips produce during all-day operation?

Each 32 GB module runs at 1.20 V without a heat spreader. The low voltage keeps power draw modest and heat output low enough for standard server airflow in the ASRock Rack chassis.

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