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Two green DDR4 ECC SODIMM modules with gold contacts, no heat spreader

OWC

OWC 16GB (2x8GB) DDR4 2666MHz ECC SODIMM for Synology DS923+

SKU CH-1AW6-8YXA3

ECC DDR4 SODIMM kit adds 16 GB at 2666 MHz CL19 for Synology DS923+ NAS

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 16GB (2 x 8GB)

  • 16GB kit doubles NAS memory for smoother multitasking
  • ECC protection prevents data corruption in critical workloads
  • 2666MHz CL19 speed matches Synology DS923+ spec
  • 2V low voltage reduces heat and power draw
  • 260-pin SODIMM form factor fits the NAS slots

Synology DS923+ Memory Upgrade

This 16GB kit uses two 8GB DDR4 ECC SODIMM modules built for the Synology DiskStation DS923+. It targets NAS owners who need more capacity for virtual machines, containers or heavy file workloads. The modules run at 2666MHz with CL19 latency and 1.2V operation.

Verify NAS Model And Slots

Confirm the unit is a DS923+ before ordering; the kit is validated only for that model. The system accepts 260-pin DDR4 SODIMMs and supports backward compatibility with 2400MHz and 2133MHz speeds. No heat spreader is fitted, so ensure the chassis airflow is adequate.

JEDEC Compliant Unbuffered ECC

Modules follow JEDEC and RoHS standards for warranty-safe installation. Unbuffered ECC design provides error correction without registered buffering. The 260-pin edge connector seats directly into the NAS memory slots for a straightforward DIY upgrade.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $111.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.00 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2C6D41R8016P
Total capacity16 GB (2 × 8 GB)
Product type260-Pin DDR4 ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology DiskStationDS923+

Other versions of this model

5 more in the same range

Questions about this item

Does the kit include both 8 GB modules or do I need to order a second stick?

The kit contains two 8 GB modules for a total of 16 GB, so nothing else is required.

Why is this kit listed as 1Rx8 when the title mentions 2Rx8?

The detailed specification lists each module as 1Rx8; the title appears to be a typo.

Will the 2666 MHz speed run at that rate in my DS923+ or drop to 2400 MHz?

The DS923+ memory controller supports 2666 MHz, so the modules operate at their rated speed.

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