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Green 288-pin DDR4 ECC UDIMM module with black chips no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 3200 CL22 2Rx8 ECC UDIMM QNAP RAM-16GDR4ECK1-UD-3200 RAM-16GDR4ECT0-UD-3200 memory upgrade

SKU CH-DXHV-NC2AG

16GB DDR4 3200 ECC UDIMM adds error-correcting memory to compatible QNAP systems

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 16 GB capacity expands NAS memory headroom
  • ECC protection detects and corrects single-bit errors
  • DDR4 3200 MHz speed matches QNAP qualified modules
  • 2 V operation keeps power draw low
  • 288-pin UDIMM form factor fits supported QNAP bays

QNAP-compatible ECC UDIMM

This 16GB DDR4 module is built for QNAP systems that require ECC unbuffered memory. It targets administrators who need error-correcting capacity for file serving, virtualization or backup workloads. The single-stick design lets you fill empty slots without displacing existing modules. Buyers whose platforms demand registered DIMMs or non-ECC memory cannot use this kit.

Thermals and power profile

Operating at 1.2V with standard DDR4 3200 signalling, the module draws modest power and runs without a heat spreader. Passive cooling relies on chassis airflow, so noise stays at the level of the system fans already present. No additional power connectors or active cooling are required. Builders who need lower-voltage or lower-latency operation will not find those specifications here.

Package contents and fit

The box contains one 288-pin UDIMM rated at CL22 with a 2Rx8 organisation. No software, drivers or mounting hardware are included because the memory is recognised automatically by compatible QNAP firmware. Users who expect bundled diagnostic tools or RGB control utilities will not receive them.

How it compares

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

Price $139.99
Cheaper than about 63% 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 $8.75 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR4 ECC Unbuffered UDIMM Memory
Part numberME25600-628K1
Total capacity16 GB
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
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 3200 MHz PC4-25600 2Rx8 1.2 V 288-PIN ECC UDIMM

Questions about this item

How do I install this 288‑pin DDR4 ECC UDIMM in my QNAP, and what step do people often miss?

Power off the NAS, open the chassis, align the notch on the 288‑pin module with the slot key, press firmly until the retention clips click, then verify the new 16 GB capacity in the QNAP BIOS or system info before closing the case.

Will this 2Rx8 CL22 module need any firmware updates or component replacements over time?

The module itself has no moving parts or firmware; it requires no scheduled maintenance. If a memory error appears, the ECC function corrects single‑bit errors, but the DIMM would need replacement only if persistent multi‑bit failures are logged.

What is the first limit I will hit when running this 3200 MHz ECC UDIMM at full load continuously?

The CAS latency of CL22 at 3200 MHz sets the timing ceiling; sustained workloads will be bound by that latency and the 1.2 V operating voltage before any thermal or bandwidth limit appears.

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