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Four green 288-pin DDR4 UDIMM sticks in static bags

NEMIX RAM

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

SKU CH-NGXC-5G312

A 128GB kit of four 32GB DDR4 2666 ECC UDIMM modules at 1.2V CL19 for ASUS servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 128 GB total capacity across four 32 GB modules
  • DDR4 2666 MT/s speed rated at PC4-21300
  • ECC unbuffered design protects data integrity
  • 2 V operating voltage for efficient power use
  • Validated for ASUS P11C-C/4L, P11C-M/4L, P11C-X and P11C-X/AUDIO motherboards

ASUS Server DDR4 2666 ECC UDIMM Kit

This 128GB kit contains four 32GB unbuffered ECC UDIMMs built for ASUS server motherboards. It runs at DDR4 2666 with a CL19 latency and 1.2V operation. The modules use major OEM chips from Samsung, Micron or Hynix and carry a 2Rx8 rank configuration. IT professionals choose this memory for mission-critical workloads that demand stability and data integrity.

Verify Motherboard Slot Count and ECC Support

Confirm your ASUS motherboard model is listed as compatible: P11C-C/4L, P11C-M/4L, P11C-X or P11C-X/AUDIO. Check that the board has four free 288-pin DDR4 slots and supports unbuffered ECC UDIMMs at this speed. Ensure the BIOS recognises 32GB density per module and that your CPU memory controller can address the full 128GB capacity. Systems requiring registered or load-reduced DIMMs cannot use this kit.

Upgrade from Smaller Capacity or Non-ECC Modules

This kit replaces lower-density DDR4 ECC UDIMMs or non-ECC memory where error correction is now required. The jump is worth it when virtualisation, database or file-server workloads exceed current memory limits and data integrity becomes critical. Buyers who need registered DIMMs, higher frequencies or larger single-module densities must select a different product line.

How it compares

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

Price $887.99
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 $6.94 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR4 2666 MHz ECC Unbuffered UDIMM
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
Heat spreaderNo
Memory rank2Rx8
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 CL19 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

Does the kit include four 32 GB modules or do I need to buy extra sticks?

The kit contains four 32 GB DDR4 ECC UDIMM modules giving 128 GB total, so no additional sticks are required.

Should I pick the CL19 2666 MHz kit or a different speed for my ASUS server board?

This CL19 2666 MHz (PC4-21300) kit matches the supported specification for the listed ASUS P11C motherboards.

What does the 2666 MHz rating mean once the memory is installed in the server?

The modules run at DDR4 2666 MT/s with 1.20 V and CL19 latency, delivering the rated bandwidth when the board operates at that speed.

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