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Two green DDR4 UDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 3200 PC4-25600 CL22 ECC UDIMM memory upgrade

SKU CH-YD17-562NM

A 64 GB kit of two 32 GB DDR4 3200 ECC UDIMM modules with CL22 latency and 1.2 V operation for compatible ASRock server motherboards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 64 GB capacity (2 × 32 GB) for large workloads
  • DDR4 3200 MT/s (PC4-25600) delivers high throughput
  • ECC unbuffered UDIMM protects data integrity
  • CL22 latency at 1.20 V for efficient operation
  • Validated for ASRock Rack E3C256D4 series motherboards

Capacity and form factor

This NEMIX RAM kit provides 64GB of DDR4 memory in a matched pair of two 32GB UDIMM modules. Each stick is a 288-pin unbuffered DIMM with ECC support and a 2Rx8 rank configuration. The modules operate at 1.2V and carry a CL22 latency rating at the rated 3200 MT/s speed. They are built using major-brand Samsung, Micron or Hynix ICs and ship without heat spreaders.

Compatibility focus

The kit is validated for specific ASRock Rack server motherboards including the E3C256D4ID2, E3C256D4ID-2T, E3C256D4U-2L2T and E3C256D4U-2L2T/BCM. It suits administrators upgrading those exact platforms where ECC unbuffered DDR4 is required. Builders using consumer desktop boards, registered-memory servers or laptops should look elsewhere because the form factor, buffering type or validation list will not match.

Deciding specification

The defining attribute is the DDR4 3200 ECC unbuffered UDIMM standard with a 2Rx8 organisation. Only systems that accept this exact module type, voltage and pin count can use the kit. Verifying the motherboard’s qualified-vendor list against the listed ASRock Rack models is the single step that confirms suitability.

How it compares

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

Price $498.99
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 $7.80 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 numberME25600-328K2
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

How do I install the 288-pin DDR4 UDIMM modules into the ASRock Rack motherboard and what step is often missed?

Align the notch on each 288-pin module with the slot key, press firmly until the retention clips click, then verify in BIOS that both 32GB sticks are detected at 3200 MT/s.

What maintenance or replacement will the ECC UDIMM kit need over time?

No scheduled maintenance is required; if a module fails the lifetime replacement warranty covers it, otherwise the kit runs for the system's usable life.

What limit appears first when the 2Rx8 CL22 memory runs under sustained load?

The CL22 latency at 3200 MT/s sets the throughput ceiling before voltage or thermal limits are reached.

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