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Four green DDR5 ECC UDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 5600 ECC UDIMM ASRock Rack W880D4U-2L2T memory upgrade

SKU CH-YT9S-VFRPK

256 GB kit of four 64 GB DDR5 ECC UDIMM modules running at 5600 MT/s CL46 1.1 V for ASRock Rack W880D4U-2L2T

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 256 GB total capacity from four 64 GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth rating
  • ECC unbuffered design protects data integrity
  • 1 V operating voltage for efficient power use
  • 288-pin UDIMM form factor fits ASRock Rack W880D4U-2L2T

256GB DDR5 ECC UDIMM kit

This 256GB kit contains four 64GB DDR5 5600 ECC unbuffered UDIMMs built for the ASRock Rack W880D4U-2L2T motherboard. It targets server and workstation builders who need validated, high-capacity memory with error correction for data integrity.

Four matched 64GB modules

The kit delivers four identical 2Rx8 modules rated at 1.1V with CL46 latency and no heat spreaders. This matched set removes the guesswork of mixing sticks and ensures the platform can initialise all channels at the rated 5600 speed.

256GB total capacity headroom

The 256GB total fills four slots and suits memory-intensive workloads such as virtualisation, large databases or in-memory analytics. Systems requiring more than four modules or higher frequencies will need a different platform or registered memory.

How it compares

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

Price $6,618.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.86 per GB
Pricier than about 71% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR5 ECC Unbuffered UDIMM Memory
Part numberME44800-928K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 ECC UDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items256 GB (4 × 64 GB) DDR5 5600 MHz PC5-44800 2Rx8 1.1 V 288-PIN ECC UDIMM KIT

Questions about this item

Will the 2Rx8 DDR5 ECC UDIMM modules need any firmware updates or reseating over time?

No firmware updates or periodic reseating are required for the 2Rx8 DDR5 ECC UDIMM modules once they are correctly installed in the ASRock Rack W880D4U-2L2T motherboard.

What limit appears first when the 256GB kit runs at 5600MHz continuously?

The CAS latency of CL46 at 5600MHz is the primary timing limit encountered during sustained operation of the 256GB DDR5 ECC UDIMM kit.

How much heat and power do the four 64GB modules produce at 1.1V all day?

The four 64GB modules operate at 1.1V without heat spreaders, so they rely on chassis airflow to manage the heat generated during continuous all-day operation.

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