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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

  • Capacity32GB (2 x 16GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 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.

Highlights

  • 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

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-628K2
Capacity32GB (2 x 16GB)
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type260-PIN DDR4 ECC SODIMM
Rank2Rx8
FeaturesDDR4 ECC Unbuffered SODIMM Motherboard Compatible
Package Content32GB (2X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 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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