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Two green DDR5 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 5600 CL46 ECC UDIMM for ASRock Rack W680D4ID-2T/G5/X550 memory upgrade

SKU CH-6QKM-GSZ6M

64 GB dual-channel DDR5 kit with ECC, CL46 latency and 1.1 V operation for ASRock Rack W680D4ID-2T/G5/X550

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeUnbuffered
  • Rated voltage1.1 V
  • 64 GB kit expands server capacity for virtualization and databases
  • ECC protection detects and corrects single-bit errors to safeguard data integrity
  • DDR5 5600 speed delivers high bandwidth for demanding workloads
  • 1 V operation reduces power draw in multi-DIMM configurations
  • Validated for ASRock Rack W680D4ID-2T/G5/X550 motherboard

System-specific DDR5 ECC kit

This NEMIX RAM kit supplies 64 GB of DDR5 ECC unbuffered memory in two 32 GB modules. It is built for the ASRock Rack W680D4ID-2T/G5/X550 motherboard and runs at 5600 MT/s with CL46 latency at 1.1 V.

Replacing non-ECC or slower DDR5

The kit upgrades systems that currently run non-ECC memory or lower-speed DDR5, adding error correction and the full 5600 MT/s data rate. The jump is worth it when workloads demand data integrity and the board’s qualified memory list includes this part number.

Build fit for W680D4ID platforms

The 288-pin UDIMMs install directly into the board’s DDR5 slots without a heat spreader, leaving clearance for tall CPU coolers. Each module uses a 2Rx8 organisation, so the memory controller sees two ranks per DIMM for maximum density per channel.

How it compares

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

Price $1,307.99
Pricier than about 63% of the 21,161 comparable items (median $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 $20.44 per GB
Pricier than about 66% 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 numberME44800-328K2
Total capacity64 GB (2 × 32 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 items64 GB (2 × 32 GB) DDR5 5600 MHz PC5-44800 2Rx8 1.1 V 288-PIN ECC UDIMM KIT

Questions about this item

Will the 288-pin DDR5 UDIMM modules fit the ASRock Rack W680D4ID-2T/G5/X550 motherboard slots?

Yes, the kit uses the standard 288-pin DDR5 UDIMM form factor that matches the motherboard's memory slots exactly.

What is the correct seating technique for these unbuffered ECC modules, and what step do builders often miss?

Align the notch with the slot key, press straight down until both retention clips click audibly, then verify both clips are fully latched — partial seating is the most common error.

When should the 2Rx8 ECC UDIMM kit be replaced in a server workload?

Replace modules if ECC correctable-error counters rise steadily, if the system logs uncorrectable memory errors, or if diagnostic tests report persistent faults on either 32GB module.

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