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Green circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2666MHz ECC Unbuffered SODIMM 2Rx8 CL19 1.2V 260-Pin memory upgrade

SKU CH-4C3N-RN4ST

16 GB DDR4 ECC unbuffered SODIMM at 2666 MHz CL19 for compatible QNAP systems

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 16 GB capacity expands system memory for heavier workloads
  • ECC unbuffered design detects and corrects single-bit errors
  • DDR4 2666 MHz speed matches PC4-21300 bandwidth rating
  • 260-pin SODIMM form factor fits compatible QNAP NAS slots
  • Low 1.2 V operation reduces power draw and heat

NEMIX RAM 16GB DDR4 ECC SODIMM

This 16GB DDR4 2666MHz ECC unbuffered SODIMM targets QNAP NAS owners who need error-correcting memory for data integrity. The single module uses a 2Rx8 organisation and runs at 1.2V with CL19 timing. It suits administrators upgrading compatible QNAP systems that require ECC SODIMM memory.

DDR4 2666MHz interface limits

The DDR4 2666 (PC4-21300) interface caps bandwidth at the JEDEC standard rate for this speed grade. ECC operation adds parity overhead that slightly reduces usable throughput compared to non-ECC modules at the same frequency. Systems not designed for ECC unbuffered SODIMMs will not benefit from the error-correction feature.

Straightforward SODIMM installation

The 260-pin SODIMM form factor fits the standard laptop-style slot found in compatible QNAP units. Installation typically takes minutes by inserting the module at an angle and pressing down until the side clips engage. Common issues include seating the module incompletely or mixing ECC with non-ECC memory in the same system.

How it compares

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

Price $126.99
Cheaper than about 64% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.94 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC Unbuffered SODIMM Memory
Part numberMSE21300-628K1
Total capacity16 GB
Product type260-Pin DDR4 ECC SODIMM
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 systemsQnap
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V 260-PIN ECC SODIMM

Questions about this item

Is the 16GB module sold as a single stick or in a kit?

This listing is for one 16GB DDR4 2666MHz ECC Unbuffered SODIMM module.

What does the 2666MHz speed mean for my QNAP NAS performance?

The module runs at DDR4 2666 (PC4-21300) with CL19 latency, delivering the rated throughput your compatible QNAP system supports.

Does the 260-pin ECC SODIMM interface limit the maximum capacity I can install?

The 260-pin DDR4 ECC SODIMM form factor fits the QNAP RAM-16GDR4ECT0-SO-2666 slot; maximum capacity depends on your specific NAS model's memory slots and firmware limits.

More in Model-Specific Memory Upgrades

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