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

NEMIX RAM

NEMIX RAM 8GB DDR4 2666 ECC SODIMM Synology DS1621xs+ memory upgrade

SKU CH-ZTH4-8DAVR

8GB DDR4 2666 ECC SODIMM module tested for Synology DS1621xs+ NAS compatibility

  • Capacity8GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity with built-in error correction
  • 2666 MHz DDR4 speed matches Synology DS1621xs+ specifications
  • 2 V low voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits NAS memory slots directly
  • Major OEM chips from Samsung, Micron or Hynix ensure reliable operation

NEMIX RAM 8GB DDR4 ECC SODIMM for Synology DS1621xs+

This 8GB module is built specifically for the Synology DiskStation DS1621xs+ NAS. It uses DDR4 2666 (PC4-21300) memory with ECC error correction and an unbuffered design. The 260-pin SODIMM form factor fits the NAS memory slot directly.

Suits owners expanding a DS1621xs+

Buyers who need non-ECC modules or a different pin count should look elsewhere. Systems that require registered DIMMs or a voltage other than 1.20V cannot use this stick. The single 8GB capacity may not fill every slot in larger configurations.

ECC unbuffered DDR4 2666 with CL19 latency

The module operates at CL19 CAS latency and 1.20V using major OEM chips from Samsung Micron or Hynix. The 1Rx8 rank organisation is fixed by the part design. Confirm the NAS accepts unbuffered ECC SODIMMs before ordering.

Points forts

  • ECC protection guards data integrity with built-in error correction
  • 2666 MHz DDR4 speed matches Synology DS1621xs+ specifications
  • 2 V low voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits NAS memory slots directly
  • Major OEM chips from Samsung, Micron or Hynix ensure reliable operation

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

Should I choose the single 8 GB module or add a second one for the DS1621xs+?

The module is sold as one 8 GB stick; adding a second identical module will enable dual-channel operation and double capacity to 16 GB if the NAS has a free slot.

What does the 2666 MT/s rating deliver inside the DS1621xs+?

The DS1621xs+ memory controller runs at 2666 MT/s, so this module operates at its rated speed without down-clocking, providing the full PC4-21300 bandwidth the system expects.

How does the 260-pin DDR4 ECC SODIMM interface limit performance?

The 260-pin DDR4 SODIMM form factor caps transfer rate at 2666 MT/s and voltage at 1.20 V, so the module cannot exceed the PC4-21300 ceiling even if a faster controller were present.

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