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Two green 16 GB DDR4 ECC SODIMM sticks side by side

OWC

OWC 32GB (2x16GB) DDR4 2666MHz CL19 ECC SODIMM 1.2V memory upgrade

SKU CH-XSWT-RCBZB

32 GB kit of two 16 GB DDR4 2666 MHz ECC SODIMM modules for Synology DVA3219 and DVA3221 NAS

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

Capacity 32GB (2 x 16GB)

  • 32GB total capacity from two 16GB modules
  • DDR4 2666MHz CL19 speed for responsive operation
  • ECC unbuffered design protects data integrity
  • 2V low voltage reduces power draw
  • Validated for Synology DVA3219 and DVA3221

Synology NVR memory kit

This 32GB kit contains two 16GB DDR4 ECC SODIMM modules validated for Synology Deep Learning NVR models DVA3219 and DVA3221. Each stick runs at 2666MHz with CL19 timing at 1.2V. The unbuffered 2Rx8 design fits the 260-pin slots in these appliances.

Sustained workload behaviour

ECC protection corrects single-bit errors during continuous recording and inference tasks, preventing silent data corruption. The modules operate at JEDEC-standard voltage without overclocking, so thermal output remains predictable inside the compact NVR chassis. Backward compatibility with 2400MHz and 2133MHz buses allows the kit to downclock automatically if the system requires it.

Build and installation notes

No heat spreader is fitted, keeping module height low for tight drive-bay clearances. Gold-edge contacts meet JEDEC and RoHS specifications for reliable seating in the SODIMM sockets. The matched pair enables dual-channel operation for maximum memory bandwidth in the supported Synology units.

Punti di forza

  • 32GB total capacity from two 16GB modules
  • DDR4 2666MHz CL19 speed for responsive operation
  • ECC unbuffered design protects data integrity
  • 2V low voltage reduces power draw
  • Validated for Synology DVA3219 and DVA3221

Caratteristiche tecniche

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 Deep Learning NVRDVA3219
Synology Deep Learning NVRDVA3221

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Domande su questo articolo

How much heat does the 1.2 V DDR4 2666 MHz kit add inside a Synology DVA3219 running 24/7?

The modules run at the standard 1.2 V JEDEC voltage and have no heat spreader, so they add only the normal DDR4 thermal load for a NAS enclosure.

Does the DVA3221 need any firmware update or extra bracket before I install the 2 x 16 GB ECC SODIMMs?

No extra hardware or firmware is required; the kit is a direct 260-pin SODIMM upgrade validated for the DVA3219 and DVA3221.

Will these CL19 2666 MHz sticks down-clock reliably if my DVA3219 currently runs 2133 MHz memory?

Yes, the modules are backward compatible with 2400 MHz and 2133 MHz systems and will operate at the lower speed automatically.

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