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Green 288-pin DDR4 UDIMM module, no heat spreader, 16GB ECC CL19 1.2V

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC UDIMM CL19 2Rx8 1.2V 288-pin server RAM

SKU CH-VFYE-6XFPE

16 GB DDR4 2666 ECC UDIMM CL19 2Rx8 1.2 V 288-pin server memory module for QNAP NAS

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 16 GB capacity expands server memory for demanding workloads
  • ECC UDIMM detects and corrects single-bit errors for data integrity
  • DDR4 2666 CL19 timing delivers responsive throughput at 1.2 V
  • 2Rx8 dual-rank organisation increases bandwidth per module
  • 288-pin unbuffered design fits compatible QNAP NAS and server boards

16 GB DDR4 ECC UDIMM for QNAP NAS

This 16 GB DDR4-2666 ECC unbuffered module is built for QNAP NAS devices that accept 288-pin UDIMM memory. It targets administrators who need error-correcting capacity for file serving, backup or virtualization workloads. The single-rank 2Rx8 organisation runs at 1.2 V with CL19 latency. No heat spreader is fitted.

Upgrade from non-ECC or lower-capacity sticks

Replacing standard unbuffered DDR4 without ECC adds single-bit error correction that protects data integrity in always-on NAS appliances. The jump is worthwhile when the system logs correctable memory errors or when ZFS and similar filesystems demand ECC for silent corruption prevention. Existing 8 GB modules can be displaced to double usable memory per slot.

Verify motherboard slot count

Confirm the NAS motherboard supports 288-pin DDR4 UDIMM at 2666 MT/s and accepts 16 GB per slot. Check the vendor’s qualified-vendor list for the ME21300-628K1 part number or the QNAP RAM-16GDR4ECP0-UD-2666 reference. Ensure the BIOS or firmware revision permits unbuffered ECC operation before ordering.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $140.99
Cheaper than about 58% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $8.81 per GB
Pricier than about 62% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineQNAP NAS Device Memory
Model nameQNAP NAS Memory
Part numberME21300-628K1
Total capacity16 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

Questions about this item

Will this 288-pin DDR4 UDIMM fit my motherboard's memory slots?

The module uses the standard 288-pin DDR4 UDIMM form factor and runs at 1.2 V, so it fits any desktop or server board with DDR4 UDIMM slots that accept 2666 MT/s ECC unbuffered memory.

What is the correct way to seat the module, and what step do people often miss?

Align the notch with the slot key, press firmly until both retention clips click, then verify in BIOS that the speed reads 2666 MT/s and ECC is enabled; the step often missed is confirming ECC operation in firmware.

When should I replace this 16 GB DDR4 2666 CL19 2Rx8 ECC UDIMM?

Replace it if memory diagnostics report uncorrectable errors, if the system fails to boot with the module installed, or if you need capacity beyond 16 GB per slot.

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