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Four green DDR5 ECC UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 5600 CL46 ECC UDIMM for ASRock Rack W680D4U-2L2T/G5 memory upgrade

SKU CH-S8TK-VH76Q

64GB kit of four 16GB DDR5 ECC UDIMMs running at 5600MHz CL46 1.1V for ASRock Rack W680D4U-2L2T/G5 systems

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB total capacity from four 16 GB modules
  • DDR5 5600 speed with CL46 latency for responsive operation
  • ECC unbuffered UDIMM detects and corrects data errors
  • Low 1.10 V voltage reduces power draw
  • Validated for ASRock Rack W680D4U-2L2T/G5 motherboard

64 GB DDR5 ECC UDIMM kit for ASRock Rack

This 64 GB kit contains four 16 GB DDR5 5600 modules built for the ASRock Rack W680D4U-2L2T/G5 motherboard. Each module is an unbuffered ECC UDIMM rated at CL46 and 1.1 V. The kit targets server and workstation builders who need validated capacity for that specific platform.

Low voltage operation at 1.1 V

Running at 1.10 V keeps power draw modest for a 64 GB configuration. The modules have no heat spreader, so airflow across the DIMM slots handles thermals. Acoustic impact depends on the chassis fans rather than the memory itself.

Four matched modules in a single kit

The package supplies four 1Rx8 modules that are tested together for the target board. This removes the guesswork of mixing individual sticks and lets the system populate all four slots with a single part number.

How it compares

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

Price $1,590.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $24.86 per GB
Pricier than about 69% 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 numberME44800-618K4
Total capacity64 GB (4 × 16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items64 GB (4 × 16 GB) DDR5 5600 MHz PC5-44800 1Rx8 1.1 V 288-PIN ECC UDIMM KIT

Questions about this item

How do I install the 288-pin DDR5 ECC UDIMM modules in the ASRock Rack W680D4U-2L2T/G5, and what step is often missed?

Align the notch on each 16 GB module with the key in the 288-pin slot, press straight down until the retention clips click, then verify in BIOS that all four modules run at 5600 MT/s with CL46 timing.

What maintenance or replacement will the 64 GB DDR5 ECC kit need over its service life?

No scheduled maintenance is required; ECC corrects single-bit errors on the fly, and the modules carry a lifetime replacement warranty if a hardware fault ever develops.

What limit appears first when the 1Rx8 DDR5 5600 CL46 memory runs under sustained load?

The CAS latency of CL46 at 5600 MT/s sets the baseline response time, and the 1.10 V operating voltage defines the thermal ceiling before throttling could occur.

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