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Four green 288-pin DDR4 UDIMM modules in a 128GB kit

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2666 ECC UDIMM CL19 1.2V memory upgrade

SKU CH-ABZZ-SBJ0C

128GB DDR4 ECC UDIMM kit with four 32GB modules at 2666MHz CL19 1.2V for ASUS Pro WS C246-ACE workstation motherboards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Size 128GB 4X32GB

  • 128 GB total capacity from four 32 GB modules
  • ECC protection detects and corrects single-bit errors
  • DDR4 2666 speed with CL19 latency at 1.2 V
  • 288-pin unbuffered UDIMM fits the ASUS Pro WS C246-ACE
  • Exact rank, voltage and timing match the motherboard memory controller

128GB DDR4-2666 ECC UDIMM kit for ASUS workstation

This 128GB kit contains four 32GB DDR4 2666MHz modules built to PC4-21300 specification. Each stick runs at 1.2V with CL19 latency and uses 2Rx8 unbuffered ECC architecture. The 288-pin UDIMM form factor matches the ASUS Pro WS C246-ACE workstation motherboard requirements exactly.

Suits buyers needing maximum validated capacity

Builders who need registered RDIMM modules or non-ECC memory for consumer platforms should look elsewhere. Systems limited to lower maximum capacities or different pin configurations cannot use this kit.

PC4-21300 speed grade

The DDR4 2666MHz rating combined with 2Rx8 unbuffered ECC organisation determines whether your motherboard memory controller will initialise the full 128GB at rated timings without manual configuration.

How it compares

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

Price $932.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.29 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 lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC Unbuffered UDIMM Memory
Part numberME21300-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS
In the box
Included items128 GB 4 × 32 GB DDR4 2666 MHz PC4-21300 2Rx8 1.2 V 288-PIN ECC UDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

Does this 128GB kit need an ASUS Pro WS C246-ACE motherboard with four free 288-pin DDR4 slots to run?

Yes, the kit contains four 32GB DDR4-2666 UDIMMs that install in four 288-pin DDR4 slots on the ASUS Pro WS C246-ACE board, using 1.20V and CL19 timing.

Can I keep my existing DDR4-2666 ECC UDIMMs and add this 4x32GB kit to reach 128GB total?

Mixing ranks or brands can prevent full-speed operation; the board's memory-population rules should be checked before combining this 2Rx8 kit with other modules.

How do I verify the system sees all 128GB at DDR4-2666 with ECC active after install?

Enter the BIOS or UEFI and confirm total memory shows 128GB, speed reads 2666 MT/s, and ECC status is reported as enabled or active.

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