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Two green circuit boards with black chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 32GB (2×16GB) DDR4 2666 CL19 ECC SODIMM Synology DS3622xs+ memory upgrade

SKU CH-HQHH-6B0S5

A 32 GB DDR4 2666 CL19 ECC SODIMM kit built for Synology DS3622xs+ NAS expansion

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection prevents data corruption in Synology DS3622xs+
  • 32 GB kit expands NAS capacity for heavy workloads
  • DDR4 2666 CL19 speed matches system specifications
  • 2 V low-voltage modules reduce power draw
  • 2Rx8 260-pin SODIMM form factor fits Synology bays

Synology DS3622xs+ memory kit

This 32 GB kit contains two 16 GB DDR4 2666 ECC unbuffered SODIMMs validated for the Synology DS3622xs+. The modules run at 1.2 V with CL19 timing and use 260-pin 2Rx8 chips from major OEM suppliers.

Replacing non-ECC or lower-capacity SODIMMs

Swapping standard unbuffered memory for this ECC kit adds error correction that protects data integrity during continuous NAS workloads. The upgrade is worth it when the system supports ECC and the workload demands maximum uptime.

Fits two SODIMM slots in the DS3622xs+

The kit occupies both memory channels with matched 16 GB modules, leaving no empty slots for future expansion. No heat spreader is fitted, so clearance inside the NAS chassis is not affected.

How it compares

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

Price $231.99
Cheaper than about 57% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $7.25 per GB
Cheaper than about 56% of the 20,941 comparable items (median $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 SODIMM
Part numberMSE21300-628K2
Total capacity32 GB (2 × 16 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 systemsSynology
In the box
Included items32 GB (2 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 260-PIN ECC Unbuffered SODIMM KIT

Questions about this item

Does the 260-pin SODIMM form factor fit the DS3622xs+ memory slots?

Yes, these modules use the standard 260-pin DDR4 SODIMM layout that the DS3622xs+ requires.

What is the correct orientation when inserting the modules?

Align the notch on the module edge with the key in the slot, press firmly until the side clips click, and repeat for the second stick.

Will the ECC function remain reliable without a heat spreader under continuous load?

The unbuffered ECC chips are rated for 1.2 V operation at CL19 and are validated for sustained NAS workloads.

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