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Two green DDR4 ECC SODIMM modules, 32GB kit

OWC

OWC 32GB (2 x 16GB) DDR4 2666MHz CL19 ECC SODIMM memory upgrade

SKU CH-3V4G-NNQ43

32 GB DDR4 ECC SODIMM kit for Synology DS1819+ and DS1821+ NAS, running at 2666 MHz CL19 with 1.2 V unbuffered operation

  • Capacity32GB (2 x 16GB)
  • Type260-Pin DDR4 ECC SODIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • 32GB kit (2 x 16GB) expands NAS capacity for larger workloads
  • DDR4 2666MHz CL19 ECC protects data integrity in Synology DS1819+ and DS1821+
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • 2V unbuffered SODIMM runs cooler without a heat spreader
  • Backward compatible with 2400MHz and 2133MHz systems

OWC 32GB DDR4 ECC SODIMM kit

This 32GB kit contains two 16GB DDR4 2666MHz CL19 ECC unbuffered SODIMM modules. They are built to JEDEC standard and operate at 1.2V. The kit is validated for Synology DiskStation DS1819+ and DS1821+ NAS systems. It provides a straightforward memory upgrade for those platforms.

Suited for DS1819+ and DS1821+ owners needing ECC

The modules fit the 260-pin SODIMM slots in the listed Synology units and deliver error-correcting code protection for data integrity. Builders working with non-ECC consumer laptops or desktops should look elsewhere because those systems cannot use ECC unbuffered SODIMMs. Systems requiring registered or load-reduced DIMMs are also not compatible.

32GB total capacity for multi-tasking headroom

The 32GB total allows the NAS to run more concurrent services, larger file caches and virtual machines without swapping. Workloads that exceed 32GB of active memory will still hit the system limit and require a platform with higher maximum capacity. The DDR4 2666 speed runs at 2400MHz or 2133MHz if the system clock is lower.

Pluspunten

  • 32GB kit (2 x 16GB) expands NAS capacity for larger workloads
  • DDR4 2666MHz CL19 ECC protects data integrity in Synology DS1819+ and DS1821+
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • 2V unbuffered SODIMM runs cooler without a heat spreader
  • Backward compatible with 2400MHz and 2133MHz systems

Specificaties

BrandOWC
Part Number2C6D42R8032P
Capacity32GB (2 x 16GB)
Type260-Pin DDR4 ECC SODIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSynology DiskStationDS1819+
Synology DiskStationDS1821+

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Does the DS1819+ or DS1821+ need any specific BIOS setting or firmware version to recognise the 2666 MHz ECC SODIMMs?

The kit is designed to meet the OEM specifications for the DS1819+ and DS1821+; the NAS will detect the 2666 MHz CL19 modules automatically on boot.

Will the 2666 MHz CL19 modules run reliably if the NAS currently has 2400 MHz or 2133 MHz memory installed?

The modules are backward compatible with 2400 MHz and 2133 MHz speeds, so the system will simply clock all DIMMs to the lowest common frequency.

After installing both 16 GB sticks, how can I confirm the NAS is using the full 32 GB with ECC active?

Open Synology DSM, go to Info Center > Memory, and verify that 32 GB is reported and that ECC status shows as enabled.

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