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NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2666MHz ECC SODIMM Kit for Synology DS1821+

SKU CH-BQNC-8M3D2

16 GB kit of two 8 GB DDR4 ECC SODIMMs at 2666 MHz for Synology DS1821+ NAS

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity
  • DDR4 2666 speed matches NAS spec
  • Dual 8 GB modules give 16 GB total
  • 2 V operation keeps power draw low
  • 260-pin SODIMM fits DS1821+ slots

Synology DS1821+ DDR4 ECC SODIMM Kit

This 16 GB kit contains two 8 GB unbuffered DDR4 2666 ECC SODIMMs built for the Synology DS1821+ NAS. It targets administrators who need to expand memory capacity while keeping data-integrity protection. The modules use 1Rx8 organisation and run at 1.2 V without heat spreaders.

ECC Unbuffered DDR4 2666 with 1Rx8 Rank

The single specification that decides fit is the ECC unbuffered DDR4 2666 1Rx8 configuration at CL19 latency. Synology DS1821+ requires exactly this combination; registered or non-ECC modules will not work. The 260-pin form factor and PC4-21300 rating match the platform's memory controller requirements.

Tool-Less Slot Access With Firm Seating Check

Installation uses the NAS's tool-less side cover and two SODIMM slots; modules click in vertically. The most common issue is incomplete seating — press each stick until both retention clips snap audibly. Verify the new capacity appears in DSM before closing the chassis.

Points forts

  • ECC protection guards data integrity
  • DDR4 2666 speed matches NAS spec
  • Dual 8 GB modules give 16 GB total
  • 2 V operation keeps power draw low
  • 260-pin SODIMM fits DS1821+ slots

Caractéristiques

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 sur cet article

What does the 2666MHz speed mean once installed in my DS1821+?

The modules run at DDR4 2666 (PC4-21300) with CL19 latency, matching the NAS memory controller so the system operates at its rated throughput without downclocking.

How does the 260-pin ECC SODIMM interface affect compatibility?

The 260-pin DDR4 ECC unbuffered SODIMM form factor is the exact slot type used by the DS1821+, and the on-module ECC provides single-bit error correction for data integrity.

Will the two 8GB sticks fit the DS1821+ memory slots without a heat spreader?

Yes, the low-profile design has no heat spreader, so both 260-pin modules seat cleanly in the NAS memory bays without clearance issues.

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