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OWC
OWC 16GB DDR4 2666MHz CL19 ECC SODIMM 2Rx8 1.2V for DS3018xs DS3622xs+
Adds 16 GB of DDR4 ECC memory to Synology DS3018xs and DS3622xs+ NAS at 2666 MHz CL19 1.2 V
- Capacity16GB (1 x 16GB)
- Type260-Pin DDR4 ECC SODIMM
- SpeedDDR4 2666 (PC4 21300)
- CAS LatencyCL19
- Voltage1.2V
- ECCYes
- 16 GB capacity expands NAS memory for heavier workloads
- DDR4 2666 MHz CL19 speed matches Synology DS3018xs and DS3622xs+ specs
- ECC protection detects and corrects data errors automatically
- 2 V low-voltage operation reduces power draw and heat
- 260-pin SODIMM form factor fits the supported DiskStation slots directly
System-Specific DDR4 ECC SODIMM for Synology NAS
This 16 GB DDR4 2666 MHz CL19 module is built for the Synology DiskStation DS3018xs and DS3622xs+. It delivers ECC error correction and unbuffered operation at 1.2 V in a 260-pin SODIMM form factor. The single 2Rx8 stick installs directly into the compatible NAS chassis. It targets administrators who need a validated capacity increase for these specific platforms.
JEDEC compliance and backward compatibility
The module meets JEDEC PC4-21300 specifications and is ROHS compliant, ensuring a warranty-safe upgrade path. It runs at 2666 MHz but will down-clock to 2400 MHz or 2133 MHz if the system requires it. No additional software or configuration tools are bundled; the benefit comes from the hardware’s standards adherence and tested compatibility alone.
16 GB capacity for multi-tasking headroom
The 16 GB stick expands the NAS memory pool, allowing more concurrent applications, larger file caches and smoother virtual-machine workloads. Performance scales until the platform’s maximum supported memory or slot count is reached. Builders needing higher densities or additional ranks must look beyond this single-module kit.
Highlights
- 16 GB capacity expands NAS memory for heavier workloads
- DDR4 2666 MHz CL19 speed matches Synology DS3018xs and DS3622xs+ specs
- ECC protection detects and corrects data errors automatically
- 2 V low-voltage operation reduces power draw and heat
- 260-pin SODIMM form factor fits the supported DiskStation slots directly
Specifications
| Brand | OWC |
|---|---|
| Part Number | 2C6D42R816GB |
| Capacity | 16GB (1 x 16GB) |
| Type | 260-Pin DDR4 ECC SODIMM |
| Speed | DDR4 2666 (PC4 21300) |
| CAS Latency | CL19 |
| Voltage | 1.2V |
| ECC | Yes |
| Buffered/Registered | Unbuffered |
| Rank | 2Rx8 |
| Heat Spreader | No |
| Compatible System | Synology DiskStationDS3018xs Synology DiskStationDS3622xs+ |
Questions about this item
Will this 16GB DDR4 SODIMM need a firmware update or replacement to stay compatible with my DS3018xs?
No firmware is required; the module is JEDEC-standard DDR4 2666 CL19 and runs at 1.2V, so it remains compatible for the life of the DS3018xs without further changes.
What limit appears first when this ECC memory runs at full 2666MHz speed continuously in a DS3622xs+?
The CAS latency of CL19 at 2666MHz sets the timing ceiling; sustained workloads hit that latency boundary before any thermal or voltage limit on this 1.2V unbuffered module.
How much heat and noise does this 1.2V 2Rx8 SODIMM add when the NAS runs all day?
The module has no heat spreader and draws only 1.2V, so it adds negligible heat and zero audible noise during continuous operation.
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