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OWC

OWC 16GB (2x8GB) DDR4 2666 ECC SODIMM memory upgrade for Synology RS822+ RS822RP+

SKU CH-154C-69AKH

16 GB DDR4 ECC SODIMM kit for Synology RS822+ and RS822RP+ NAS systems

  • 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)

  • 16 GB kit (2 × 8 GB) expands Synology RS822+ and RS822RP+ memory
  • DDR4 2666 MHz CL19 ECC unbuffered SODIMM for data integrity
  • JEDEC-standard 1.2 V modules run cool without heat spreaders
  • Backward compatible with 2400 MHz and 2133 MHz systems
  • 260-pin form factor fits factory slots for simple DIY installation

Synology RS822+ RS822RP+ ECC SODIMM Kit

This 16GB kit contains two 8GB DDR4 2666 ECC SODIMM modules built for the Synology RS822+ and RS822RP+ RackStation units. The modules run at PC4-21300 with CL19 latency and 1.2V operation. They are unbuffered, single-rank 1Rx8 devices in the standard 260-pin form factor. JEDEC and RoHS compliance ensures a warranty-safe upgrade for these NAS platforms.

Suited for NAS owners needing ECC reliability

The kit targets administrators who want error-correcting memory in the supported Synology RackStation models to protect data integrity during file serving, virtualization or backup workloads. It will not help buyers who require registered or load-reduced DIMMs, nor those whose systems demand higher frequencies or larger per-module capacities than the 8GB density supplied here.

Sustained load behaviour in compatible NAS

Under continuous operation the modules maintain their rated 2666MT/s speed and CL19 timings at 1.2V without a heat spreader, relying on chassis airflow. Backward compatibility allows them to clock down to 2400MHz or 2133MHz if the platform requires it, preserving stability during extended multi-user access or RAID rebuilds.

How it compares

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

Price $108.99
Cheaper than about 67% 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 $6.81 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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 RackstationRS822+
Synology RackstationRS822RP+

Other versions of this model

3 more in the same range

Questions about this item

What Synology NAS models must I already own for this 16 GB DDR4 2666 ECC SODIMM kit to work?

This kit is validated for Synology RackStation RS822+ and RS822RP+ systems.

Will these CL19 2666 MHz modules run reliably if my RS822+ currently has 2400 MHz or 2133 MHz memory installed?

Yes, the modules are backward compatible with 2400 MHz and 2133 MHz speeds and will operate at the lowest common frequency.

How can I confirm the RS822+ recognises the full 16 GB capacity after installation?

Check the DSM Resource Monitor or Info Center; it should report 16 GB of installed memory with ECC active.

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