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Two green DDR4 UDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 2666MHz ECC UDIMM CL19 1.2V 288-pin memory upgrade

SKU CH-19YW-D3FC9

64GB dual-channel DDR4 ECC UDIMM kit at 2666MHz CL19 for compatible ASUS servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection prevents data errors in critical workloads
  • 64 GB capacity with two 32 GB modules for high-density upgrades
  • DDR4 2666 MHz speed rated at PC4-21300 for server performance
  • 2 V operation reduces power draw and heat output
  • Validated for ASUS P11C-C/4L, P11C-M/4L, P11C-X and P11C-X/AUDIO motherboards

ASUS Server DDR4 ECC Kit

This 64 GB kit contains two 32 GB unbuffered UDIMMs built for ASUS server motherboards such as the P11C-C/4L, P11C-M/4L, P11C-X and P11C-X/AUDIO. It targets administrators who need ECC protection on platforms that accept standard DDR4 2666 modules.

288-Pin UDIMM Build

Each module uses a 288-pin layout without a heat spreader, keeping the profile low for dense server chassis. Major OEM chips from Samsung, Micron or Hynix run at 1.2 V with a CL19 latency and 2Rx8 organisation for stable operation under load.

DDR4 2666 Upgrade Path

The kit replaces lower-capacity or non-ECC DDR4 DIMMs on compatible ASUS boards, adding error correction and doubling density per slot. The jump is worthwhile when workloads demand data integrity and the platform supports unbuffered ECC at this speed.

How it compares

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

Price $433.99
Typical for this category: the median of 21,161 items is $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 $6.78 per GB
Cheaper than about 59% 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 numberME21300-328K2
Total capacity64 GB (2 × 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 items64 GB (2 × 32 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

What DDR4 speed and peak bandwidth does this 64GB kit run at?

The modules operate at 2666 MT/s, which corresponds to a PC4-21300 data rate.

What physical slot and module height clearance do these 32GB sticks require?

They use the standard 288-pin UDIMM form factor with no heat spreader, so they fit any DDR4 UDIMM slot without extra height concerns.

Which way do the notches align when seating these ECC UDIMMs in an ASUS server board?

Match the off-centre notch on each 288-pin module to the key in the slot, press straight down until both side clips click, and populate the channels per the motherboard manual for dual-channel operation.

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