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Green rectangular DDR4 memory module with gold contacts and black chips, no heat spreader

OWC

OWC 16GB DDR4 2666 PC4-21300 CL19 2Rx8 288-pin 1.2V ECC Unbuffered DIMM memory upgrade

SKU CH-SR02-6RBJ0

Adds 16 GB of DDR4 ECC UDIMM memory at 2666 MHz CL19 for compatible Synology NAS systems

  • Capacity16GB
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 16 GB capacity expands NAS memory for larger workloads
  • DDR4 2666 speed with CL19 latency delivers responsive performance
  • ECC unbuffered design protects data integrity in Synology systems
  • 2 V operation reduces power draw and heat output
  • Compatible with SA3400D, DS725+, DS925+, DS1825+ and DS1825xs+

OWC 16GB DDR4 2666 ECC DIMM for Synology NAS

This 16GB DDR4 2666 PC4-21300 CL19 ECC unbuffered DIMM is a single 288-pin module designed as a warranty-safe upgrade for specific Synology NAS systems. It runs at 1.2V with a 2Rx8 rank configuration and meets JEDEC and RoHS standards.

Suits owners of compatible Synology models needing

It fits the SA3400D, DS1825+, DS1825xs+, DS725+ and DS925+. Builders requiring non-ECC memory, registered DIMMs, speeds above 2666MHz or capacities beyond 16GB per module should look elsewhere.

One module adds 16GB of error-correcting capacity

The CL19 timing at 2666MHz handles typical NAS workloads such as file serving, virtualization and multi-user access. Backward compatibility with 2133MHz and 2400MHz systems provides headroom for mixed-speed configurations.

Points forts

  • 16 GB capacity expands NAS memory for larger workloads
  • DDR4 2666 speed with CL19 latency delivers responsive performance
  • ECC unbuffered design protects data integrity in Synology systems
  • 2 V operation reduces power draw and heat output
  • Compatible with SA3400D, DS725+, DS925+, DS1825+ and DS1825xs+

Caractéristiques

BrandOWC
Part Number2E6D42R816GB
Capacity16GB
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSynology NAS SA3400D
Synology DiskStation DS1825+
Synology DiskStation DS1825xs+
Synology DiskStation DS725+
Synology DiskStation DS925+

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Questions sur cet article

Which Synology NAS models must I already own for this 16GB DDR4 2666 ECC UDIMM to be a supported upgrade?

The module is validated for the Synology SA3400D, DS1825+, DS1825xs+, DS725+ and DS925+ systems.

How will this CL19 2666MHz stick behave if I keep existing 2133MHz or 2400MHz modules in the same NAS?

It is backward compatible with 2133MHz and 2400MHz speeds, so the system will run all modules at the lowest common frequency.

After installation, how can I confirm the 288-pin ECC unbuffered DIMM is recognised and running at PC4-21300?

Check the Synology DSM info centre; it will show 16GB capacity, 2666MHz speed, ECC active and 1.2V voltage for the new module.

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