We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green bare circuit board SODIMM module with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC Unbuffered SODIMM CL19 2Rx8 memory upgrade

SKU CH-KZKT-5PKPX

16 GB DDR4 2666 MHz ECC unbuffered SODIMM with CL19 latency for Synology RackStation DS1823xs+

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity on NAS workloads
  • DDR4 2666 speed matches Synology DS1823xs+ specifications
  • 16 GB single module expands capacity without empty slots
  • 2 V operation keeps power draw low in compact enclosures
  • 2Rx8 rank organisation optimises bandwidth for multi-threaded tasks

Synology DS1823xs+ NAS upgrade

This 16 GB DDR4 2666 SODIMM adds ECC unbuffered memory to the Synology Rackstation DS1823xs+. The module targets IT professionals and enthusiasts who need verified compatibility for mission-critical storage workloads. It installs in a single 260-pin slot to expand capacity without mixing ranks. The 2Rx8 organisation suits the platform's memory controller.

Low-voltage operation and passive cooling

Running at 1.20 V, the module draws minimal power and produces little heat, so no heat spreader is required. Silent passive operation keeps acoustic levels unchanged in rackmount or desktop NAS deployments. CL19 latency at 2666 MT/s delivers stable throughput for sustained file-serving and virtualisation tasks. ECC protection corrects single-bit errors to maintain data integrity under load.

Single-module flexibility for dense chassis

The 1x16 GB format leaves additional SODIMM slots free for future expansion within the system's maximum capacity. No extra cables, brackets or airflow adjustments are needed. Builders who need registered DIMMs, higher frequencies or non-ECC memory must select a different module. Compatibility is validated for the listed Synology platform only.

Highlights

  • ECC protection guards data integrity on NAS workloads
  • DDR4 2666 speed matches Synology DS1823xs+ specifications
  • 16 GB single module expands capacity without empty slots
  • 2 V operation keeps power draw low in compact enclosures
  • 2Rx8 rank organisation optimises bandwidth for multi-threaded tasks

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-628K1
Capacity16GB
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
Rank2Rx8
FeaturesDDR4 ECC Unbuffered SODIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM

Questions about this item

How do I install the 260-pin DDR4 SODIMM in my Synology Rackstation DS1823xs+ and what step is often missed?

Power off the NAS, remove the chassis cover, insert the module at an angle into the slot until it clicks, then secure the retaining clips; the step often missed is fully seating both clips so the ECC circuitry makes proper contact.

What maintenance or replacement will this 16GB ECC unbuffered module need over time?

No scheduled maintenance is required; the module has no heat spreader or moving parts, so replacement is only necessary if a memory error appears or capacity must be increased beyond 16GB.

What limit appears first when this CL19 2Rx8 kit runs sustained workloads?

The CAS latency of 19 cycles at 2666 MT/s sets the timing ceiling, so sustained throughput is bounded by that latency before thermal or voltage constraints become factors.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.