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 circuit board with black memory chips, 260-pin DDR4 SODIMM form factor, no heat spreader

OWC

OWC 16GB DDR4 2666MHz CL19 ECC SODIMM 2Rx8 1.2V Synology DS1823+ DS2422+ memory upgrade

SKU CH-ZFXA-JRDG3

16GB DDR4 2666MHz ECC SODIMM adds 16GB to Synology DS1823+ or DS2422+ NAS

  • Capacity16GB (1 x 16GB)
  • Type260-Pin DDR4 ECC SODIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 16GB DDR4 2666MHz CL19 ECC SODIMM expands DS1823+ and DS2422+ NAS capacity
  • JEDEC-standard PC4-21300 module ensures warranty-safe, compliant upgrade
  • 2V unbuffered 2Rx8 design reduces power draw in micro-server environments
  • Backward compatible with 2400MHz and 2133MHz systems for flexible deployment
  • Single 260-pin stick simplifies DIY installation in compatible Synology DiskStation units

OWC 16GB DDR4 ECC SODIMM for Synology NAS

This 16GB DDR4 2666MHz CL19 ECC unbuffered SODIMM is designed for Synology DiskStation DS1823+ and DS2422+ systems. It adds 16GB of error-correcting memory to compatible NAS units. The module suits administrators who need data integrity for storage workloads.

Tool-free slot installation

The 260-pin SODIMM inserts directly into the NAS memory slot without tools. It operates at 1.2V and is backward compatible with 2400MHz and 2133MHz systems. The only common issue is forgetting to power down the unit fully before inserting the module.

Sustained ECC operation at JEDEC standard speeds

Under continuous load the memory maintains 2666MHz CL19 timing with ECC active, correcting single-bit errors without performance penalty. The 2Rx8 organisation supports steady throughput for multi-user file services and virtualisation tasks. It is not for systems that require registered DIMMs or non-ECC memory.

Highlights

  • 16GB DDR4 2666MHz CL19 ECC SODIMM expands DS1823+ and DS2422+ NAS capacity
  • JEDEC-standard PC4-21300 module ensures warranty-safe, compliant upgrade
  • 2V unbuffered 2Rx8 design reduces power draw in micro-server environments
  • Backward compatible with 2400MHz and 2133MHz systems for flexible deployment
  • Single 260-pin stick simplifies DIY installation in compatible Synology DiskStation units

Specifications

BrandOWC
Part Number2C6D42R816GB
Capacity16GB (1 x 16GB)
Type260-Pin DDR4 ECC SODIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSynology DiskStationDS1823+
Synology DiskStationDS2422+

Questions about this item

How can I confirm the 16GB DDR4 2666MHz ECC SODIMM is recognised at the correct speed after installing it in my DS1823+?

After installation, open DSM Control Panel, go to Info Center > System, and verify the memory section shows 16GB running at 2666MHz with ECC enabled.

What comes in the box with the OWC 2C6D42R816GB module and what else might I need for the DS2422+?

The package contains one 16GB 260-pin DDR4 2666 CL19 ECC unbuffered 2Rx8 SODIMM at 1.2V. No extra parts are required if a slot is free; buy a second identical module to populate both channels.

Should I choose the 16GB 2666MHz CL19 ECC SODIMM or a lower-speed version for my DS1823+?

Select this 2666MHz CL19 module; it is JEDEC-standard and backwards compatible with 2400MHz and 2133MHz, so it will run at the highest speed the NAS supports.

Also in this aisle

People compared these

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