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Green circuit board SODIMM module with black memory chips and gold edge contacts

NEMIX RAM

NEMIX RAM 8GB DDR4 2666 ECC SODIMM Synology RS1221+ memory upgrade

SKU CH-SGVK-5QMR3

8GB DDR4 2666 ECC SODIMM module validated for Synology RS1221+ NAS upgrades

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection prevents data errors
  • DDR4 2666 speed matches Synology RS1221+ spec
  • 2 V operation reduces power draw
  • 260-pin SODIMM fits NAS memory slots
  • 1Rx8 single-rank design ensures compatibility

Synology RS1221+ ECC SODIMM Upgrade

This 8 GB DDR4 2666 ECC SODIMM is built for Synology RackStation RS1221+ and RS1221RP+ NAS units. It targets administrators who need to expand memory capacity for virtualization, container workloads or heavy file-service demands. The unbuffered ECC design protects data integrity in always-on storage environments. It is not suited for desktop PCs or laptops that require non-ECC memory.

DDR4 2666 PC4-21300 CL19 Specification

The module runs at DDR4 2666 (PC4-21300) with a CAS latency of CL19 and operates at 1.20 V. It uses a 1Rx8 organisation on a 260-pin SODIMM form factor with Samsung, Micron or Hynix chips. This exact speed, voltage and rank combination is the deciding factor for RS1221+ compatibility; systems requiring a different DDR4 speed, registered DIMMs or non-ECC modules will not accept this part.

Low-Power Unbuffered Operation

At 1.20 V the stick draws minimal power and generates little heat inside the dense NAS chassis. No heat spreader is fitted, relying on the system’s internal airflow for passive cooling. The unbuffered ECC design adds no active components, so acoustic impact is zero and thermal load stays low during continuous operation.

Points forts

  • ECC protection prevents data errors
  • DDR4 2666 speed matches Synology RS1221+ spec
  • 2 V operation reduces power draw
  • 260-pin SODIMM fits NAS memory slots
  • 1Rx8 single-rank design ensures compatibility

Caractéristiques

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-818K1
Capacity8GB
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 Content8GB (1X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM

Questions sur cet article

Will the CL19 latency slow down everyday NAS tasks on my RS1221+?

The module runs at CL19 with a 2666 MT/s data rate, matching the memory controller specification for the RS1221+ so the NAS operates at its rated throughput without adding latency overhead.

What does the 260-pin DDR4 SODIMM interface mean for installation?

The 260-pin DDR4 SODIMM form factor fits directly into the SO-DIMM slot on the RS1221+ motherboard and is keyed to prevent insertion into incompatible sockets.

Does the 1.2 V operating voltage match the RS1221+ power requirements?

The module operates at 1.2 V, which is the standard DDR4 voltage the RS1221+ memory controller expects, so no voltage adjustment is needed.

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