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Green circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC UDIMM CL19 1.2V 288-Pin Synology RS1619xs+ memory upgrade

SKU CH-2RPS-SS29R

ECC UDIMM module adds 16 GB of DDR4 2666 memory with CL19 latency and 1.2 V operation for Synology RS1619xs+ NAS

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection guards data integrity in NAS workloads
  • 2666 MHz DDR4 speed matches Synology RS1619xs+ specifications
  • 16 GB single module simplifies capacity expansion
  • 2 V operation reduces power draw and heat
  • 288-pin UDIMM form factor fits standard DDR4 slots

Synology RS1619xs+ ECC UDIMM upgrade

This 16 GB DDR4 2666 module is built specifically for the Synology RackStation RS1619xs+. It adds ECC protection to the NAS without requiring registered memory. The single stick plugs directly into an available 288-pin slot.

16 GB capacity with CL19 latency

The kit delivers 16 GB at PC4-21300 speed and 1.2 V. ECC catches single-bit errors that can corrupt stored data. Unbuffered design keeps latency low at CL19. A second slot would be needed to exceed 16 GB total.

Fits standard UDIMM slots in the RS1619xs+

No heat spreader means the module clears tight drive cages and CPU coolers inside the rackmount chassis. It draws 1.2 V from the board, matching the factory power envelope. Installation takes minutes with no tools beyond opening the case.

How it compares

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

Price $127.99
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 $8.00 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 lineSynology Compatible Series NAS Memory
Model nameSynology DDR4 2666 MHz ECC Unbuffered UDIMM
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
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 288-PIN ECC Unbuffered UDIMM

Questions about this item

Will this DDR4 2666 ECC UDIMM work with the original memory installed in my Synology RS1619xs+?

The module is specified as compatible with the Synology RackStation RS1619xs+ NAS and uses the DDR4 2666 standard required by that system.

How can I confirm the 16GB stick is running at 2666 MT/s with ECC active after installation?

Check the Synology DSM Resource Monitor or storage manager; they report memory speed, capacity and ECC status for each installed DIMM.

Does the package include only the 16GB UDIMM or are tools or cables also supplied?

The package content lists a single 16GB DDR4 2666 ECC UDIMM; no tools, cables or additional hardware are included.

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