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Two green DDR4 ECC SODIMM modules with gold contacts

OWC

OWC 16GB (2x8GB) DDR4 2666MHz CL19 ECC SODIMM for Synology DS1618+

SKU CH-2AAV-5JBW9

16GB dual-channel DDR4 ECC SODIMM kit running at 2666MHz CL19 for Synology DS1618+ NAS upgrades

  • 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 boosts multitasking on DS1618+
  • DDR4 2666 CL19 ECC ensures data integrity
  • JEDEC 1.2V standard keeps power draw low
  • 260-pin SODIMM fits Synology NAS slot directly
  • Backward compatible with 2400 and 2133MHz systems

Targeted NAS Memory Kit

This 16GB kit provides two 8GB DDR4 2666MHz ECC SODIMM modules validated for the Synology DS1618+. It suits administrators who need to expand memory capacity for virtual machines, container workloads or heavy multi-user file serving on that specific platform.

ECC Protection and Compatibility

Error-correcting code detects and corrects single-bit errors to maintain data integrity during sustained NAS operations. The modules run at 1.2V and are backwards compatible with 2400MHz and 2133MHz bus speeds, allowing the system to negotiate the highest stable frequency automatically.

Low-Profile Unbuffered Design

Without a heat spreader the sticks fit tight drive-bay chassis and standard SODIMM slots without clearance issues. The 260-pin unbuffered layout matches the DS1618+ motherboard requirements, so installation is a straightforward DIY upgrade that preserves the original warranty.

How it compares

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

Price $106.99
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 $6.69 per GB
Cheaper than about 59% 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 DiskStationDS1618+

Other versions of this model

5 more in the same range

Questions about this item

Will the 260-pin DDR4 SODIMM slots on the DS1618+ need a different module type if I upgrade again later?

No, the DS1618+ uses standard 260-pin DDR4 SODIMM slots, so any future upgrade will use the same form factor as this 16 GB kit.

What speed ceiling appears first when the NAS runs sustained workloads with this 2666 MHz CL19 memory?

The memory controller in the DS1618+ limits operation to 2666 MHz, so the kit’s rated 2666 MHz CL19 speed is the ceiling you will hit under continuous load.

How much heat and power does this 1.2 V ECC kit add when the DS1618+ runs 24/7?

Each module runs at 1.2 V without a heat spreader, adding minimal heat and power draw suitable for constant NAS operation.

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