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, gold edge connector, no heat spreader

OWC

OWC 16GB DDR4 2666MHz CL19 ECC SODIMM 2Rx8 1.2V for Synology DS923+ memory upgrade

SKU CH-GYTK-T38Q2

16GB DDR4 ECC SODIMM running at 2666MHz CL19 1.2V, validated for Synology DS923+ NAS upgrades

  • Total capacity16 GB (1 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • Boosts NAS responsiveness with 16GB DDR4 2666MHz ECC memory
  • Ensures data integrity using ECC unbuffered 2Rx8 modules
  • Runs cool and efficient at low 1.2V operating voltage
  • Fits DS923+ exactly with 260-pin SODIMM form factor
  • Compatible with 2400MHz and 2133MHz systems for flexible upgrades

Synology DS923+ 16GB DDR4 upgrade

This 16GB DDR4 2666MHz CL19 ECC SODIMM is built specifically for the Synology DiskStation DS923+. It adds a single 260-pin unbuffered module to the NAS, raising total memory for heavier workloads. The JEDEC-standard part runs at 1.2V and carries OWC lifetime warranty coverage.

Capacity headroom for NAS workloads

One 16GB stick doubles the factory 8GB on many DS923+ units, giving comfortable room for Docker containers, virtual machines and large file caches. The module steps down to 2400MHz or 2133MHz if the system requires it. Buyers needing more than 16GB per slot or non-ECC memory should look elsewhere.

ECC SODIMM build for 24/7 operation

The 2Rx8 rank layout and ECC support protect data integrity during continuous NAS duty. No heat spreader keeps the low-profile 260-pin form factor compatible with the DS923+ slot clearance. Installation is a tool-less DIY swap that preserves the original system warranty.

How it compares

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

Price $113.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (1 × 16 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.12 per GB
Cheaper than about 57% 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 number2C6D42R816 GB
Total capacity16 GB (1 × 16 GB)
Product type260-Pin DDR4 ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology DiskStationDS923+

Questions about this item

Will this 2666MHz ECC SODIMM run reliably with the 2400MHz modules already in my DS923+?

Yes — the module is backwards compatible with 2400MHz and 2133MHz speeds so it will downclock automatically and run without errors alongside your existing memory.

How can I verify the 16GB ECC module is recognised and error-correcting after installation?

Open DSM Control Panel → Info Center → Memory; you should see 16GB listed and the system health status showing ECC active with no correctable errors reported.

Does the package include only the 260-pin SODIMM or are tools or a heat spreader also supplied?

The box contains the single 16GB 2Rx8 1.2V SODIMM only; no heat spreader, screwdriver or additional accessories are included.

More in Model-Specific Memory Upgrades

Similar items