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Two green DDR4 SODIMM sticks, no heat spreaders, gold contacts, 260-pin

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2666MHz CL19 1.2V ECC SODIMM for Synology RS822+

SKU CH-DYS3-5A3YP

ECC DDR4 SODIMM kit adds 16 GB at 2666 MHz CL19 for Synology RS822+ NAS

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity on Synology RS822+
  • 16 GB kit (2 × 8 GB) expands NAS capacity
  • DDR4 2666 MHz CL19 matches system spec
  • 2 V low-voltage modules reduce power draw
  • 260-pin SODIMM form factor fits RS822+ slots

Synology RS822+ DDR4 ECC SODIMM Kit

This 16 GB kit contains two 8 GB DDR4 2666 MHz ECC unbuffered SODIMM modules built for the Synology RS822+ NAS. It runs at 1.20 V with CL19 latency and uses a 260-pin form factor. The memory targets IT professionals who need validated ECC reliability for mission-critical storage workloads.

2x8 GB Matched Pair With ECC Validation

The paired modules are stress-tested together to ensure stable dual-channel operation inside the RS822+. ECC circuitry detects and corrects single-bit errors, protecting data integrity during intensive file serving or backup tasks. No heat spreaders are included, keeping the low-profile SODIMM height compatible with the NAS chassis.

DDR4 2666 SODIMM Interface Constraints

The 260-pin DDR4 SODIMM slot limits upgrades to unbuffered ECC modules at this speed and voltage. Higher-frequency or registered DIMMs will not function in the RS822+ memory controller. Builders needing more than 16 GB total capacity cannot use this kit alone.

Highlights

  • ECC protection guards data integrity on Synology RS822+
  • 16 GB kit (2 × 8 GB) expands NAS capacity
  • DDR4 2666 MHz CL19 matches system spec
  • 2 V low-voltage modules reduce power draw
  • 260-pin SODIMM form factor fits RS822+ slots

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-818K2
Capacity16GB (2 x 8GB)
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
Rank1Rx8
FeaturesDDR4 ECC Unbuffered SODIMM Motherboard Compatible
Package Content16GB (2X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM KIT

Questions about this item

Will the ECC SODIMM modules need replacement after a certain number of write cycles?

ECC DRAM does not wear out from write cycles; the modules only require replacement if a hardware fault develops.

What is the first limit reached when the kit runs at 2666MHz CL19 continuously?

The CAS latency of CL19 sets the timing ceiling; sustained throughput cannot exceed the DDR4 2666 bus rate.

How much heat and power does the 1.2V kit produce during all-day NAS operation?

At 1.20V with no heat spreader the modules run cool and draw minimal power, so fan noise stays low in the RS822+.

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