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Green circuit board with black chips and gold contacts

OWC

OWC 16GB DDR4 2666 ECC SODIMM memory upgrade

SKU CH-B6G9-69Z6R

16 GB DDR4-2666 ECC SODIMM for Synology DiskStation DS725+, DS925+, DS1525+, DS1825+ and DS1825xs+ NAS units

  • Capacity16GB
  • Type260-Pin DDR4 ECC SODIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 16GB

  • 16 GB capacity lets you run more virtual machines and larger datasets on Synology NAS
  • ECC protection detects and corrects single-bit errors to keep stored data intact
  • DDR4 2666 speed with CL19 latency delivers responsive performance for NAS workloads
  • 2 V operation reduces power draw and heat inside compact DiskStation enclosures
  • JEDEC and RoHS compliant module installs as a direct replacement for Synology part numbers D4ECSO-2666-16G and D4ES01-16G

16GB DDR4 ECC SODIMM for Synology NAS

This 16GB DDR4 2666 ECC SODIMM upgrades compatible Synology DiskStation models including the DS1525+, DS1825+, DS1825xs+, DS725+ and DS925+. It runs at 1.2V with CL19 latency and uses a 2Rx8 unbuffered layout. The module meets JEDEC and RoHS standards for a warranty-safe installation.

Suits DS1525+, DS1825+, DS1825xs+, DS725+.

Buyers who need non-ECC memory for consumer laptops or desktops should look elsewhere, as this module includes error correction. Systems that require registered or load-reduced DIMMs cannot use this unbuffered SODIMM. The single 16GB capacity may not fill every slot in larger multi-bay units.

260-pin DDR4 2666 ECC SODIMM form factor

This module uses the 260-pin SO-DIMM interface required by the listed Synology NAS units. It is backward compatible with 2400MHz and 2133MHz DDR4 slots. The ECC unbuffered specification is the single detail that determines whether the part will function in your specific DiskStation model.

Points forts

  • 16 GB capacity lets you run more virtual machines and larger datasets on Synology NAS
  • ECC protection detects and corrects single-bit errors to keep stored data intact
  • DDR4 2666 speed with CL19 latency delivers responsive performance for NAS workloads
  • 2 V operation reduces power draw and heat inside compact DiskStation enclosures
  • JEDEC and RoHS compliant module installs as a direct replacement for Synology part numbers D4ECSO-2666-16G and D4ES01-16G

Caractéristiques

BrandOWC
Part Number2C6D42R816GB
Capacity16GB
Type260-Pin DDR4 ECC SODIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSynology DiskStation DS1525+
Synology DiskStation DS1825+
Synology DiskStation DS1825xs+
Synology DiskStation DS725+
Synology DiskStation DS925+

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Questions sur cet article

Does the 260-pin DDR4 SODIMM fit the memory slots in my Synology DS925+?

Yes — the module is a 260-pin DDR4 SODIMM, the exact form factor used by the DS925+ and the other listed DiskStation models.

What is the correct orientation when inserting the module, and which mistake should I avoid?

Align the notch on the module’s gold edge with the key in the slot, press straight down until both side clips snap shut; forcing it at an angle can bend the 260 pins.

Will I need to replace this ECC SODIMM on a set schedule, or only if errors appear?

ECC memory has no fixed replacement interval; run the NAS built-in memory test periodically and swap the module only if the test reports correctable or uncorrectable errors.

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