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Green circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC UDIMM CL19 2Rx8 1.2V 288-pin Synology RS3621xs+ memory upgrade

SKU CH-5B1T-B2S1T

16 GB DDR4 2666 ECC UDIMM module with CL19 latency for Synology RS3621xs+ NAS expansion

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity in Synology RS3621xs+ NAS
  • 16 GB module expands capacity for demanding workloads
  • DDR4 2666 speed matches system specification for stable operation
  • Unbuffered 288-pin UDIMM fits directly into available memory slots
  • Low 1.2 V voltage reduces power draw and heat output

Synology RS3621xs+ memory upgrade

This 16 GB DDR4 2666 ECC UDIMM module is built for the Synology RackStation RS3621xs+ NAS. It adds capacity with error-correcting memory to protect data integrity in a mission-critical storage server. The unbuffered design fits the platform's standard DIMM slots.

DDR4 2666 interface limits

The module runs at DDR4 2666 (PC4-21300) with CL19 latency at 1.20 V. Speed is fixed by the JEDEC standard for this generation; the memory controller will not negotiate a higher data rate. ECC operation requires a compatible platform that enables the feature in firmware.

Check your NAS before ordering

Verify that your RS3621xs+ has a free 288-pin UDIMM slot and that the current firmware supports 2Rx8 ECC modules. Confirm the maximum supported capacity per slot in the official specifications. Ensure the system is powered down and anti-static precautions are taken during installation.

Points forts

  • ECC protection guards data integrity in Synology RS3621xs+ NAS
  • 16 GB module expands capacity for demanding workloads
  • DDR4 2666 speed matches system specification for stable operation
  • Unbuffered 288-pin UDIMM fits directly into available memory slots
  • Low 1.2 V voltage reduces power draw and heat output

Caractéristiques

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered UDIMM
Part NumberME21300-628K1
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 ECC UDIMM
Rank2Rx8
FeaturesDDR4 ECC Unbuffered UDIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM

Questions sur cet article

Should I pick the 16 GB 2Rx8 module or a different capacity for the RS3621xs+?

The 16 GB 2Rx8 stick is a single-module kit; add identical modules to reach the capacity your workload needs.

What does the 2666 MHz rating deliver inside the RS3621xs+?

The module runs at DDR4 2666 (PC4-21300) with CL19 latency, giving the NAS its rated memory bandwidth.

Does the 288-pin ECC UDIMM interface limit speed or features on this NAS?

The 288-pin DDR4 ECC unbuffered UDIMM fits the RS3621xs+ slots and operates at the specified 2666 MHz.

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