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Green circuit board with black memory chips, gold edge connector, rectangular SODIMM shape

A-Tech

A-Tech 16GB DDR4 2666MHz ECC SODIMM CL19 1.20V 2Rx8 260-Pin

SKU CH-6G5F-8SZ8W

16 GB DDR4 2666 MHz ECC SODIMM module with CL19 latency and 1.20 V operation for compatible Synology NAS systems

  • Capacity16GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • ECC protection guards data integrity on critical NAS workloads
  • 16 GB capacity expands multitasking headroom for demanding applications
  • DDR4 2666 MHz speed delivers responsive throughput for Synology systems
  • CL19 latency at 1.20 V balances performance with efficient power draw
  • Validated compatibility across DS, RS and DVA series platforms

16GB DDR4 ECC SODIMM for Synology NAS

This 16GB DDR4 2666MHz ECC unbuffered SODIMM upgrades compatible Synology DiskStation, RackStation, FlashStation and NVR DVA units. It targets administrators who need error-correcting memory for data integrity in always-on storage appliances. The single 260-pin module installs in supported bays to expand capacity for virtualization, containers or heavy multi-user workloads.

Standard voltage and tested reliability

Operating at 1.20V, the module runs at the DDR4 standard voltage without elevated power draw. All units undergo quality assurance testing to verify dependable performance under continuous NAS operation. The unbuffered ECC design adds error correction while keeping latency at CL19 for typical file-service and backup workloads.

Replaces Synology D4ECSO-2666-16G and D4ES01-16G

This module serves as a direct equivalent for the listed Synology part numbers across models such as DS1522+, DS1621+, DS1821+, DS2422+, DS923+, DS723+, RS822+, RS1221+ and DVA3221. The upgrade is worthwhile when the system reports memory pressure during concurrent services or when adding virtual machines. Builders needing non-ECC memory or speeds above 2666MHz should look elsewhere.

商品特色

  • ECC protection guards data integrity on critical NAS workloads
  • 16 GB capacity expands multitasking headroom for demanding applications
  • DDR4 2666 MHz speed delivers responsive throughput for Synology systems
  • CL19 latency at 1.20 V balances performance with efficient power draw
  • Validated compatibility across DS, RS and DVA series platforms

商品規格

BrandA-Tech
Capacity16GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
FeaturesMajor Brand Chips
Recommend UseAMD & Intel Compatible

商品問答

How do I install this 260-pin DDR4 SODIMM in my Synology DS923+ and what step is often missed?

Power off the NAS, unplug it, open the chassis, align the notch on the 260-pin module with the slot key, press firmly until the side clips click, then reapply power and verify the new 16GB capacity in DSM.

What maintenance or replacement will this ECC unbuffered module need over time?

No scheduled maintenance is required; keep the NAS vents clear so the module stays at its 1.20V operating temperature, and replace only if DSM reports a correctable ECC error count that exceeds the system threshold.

What limit appears first when this CL19 2666MHz module runs sustained workloads on a DS1621+?

The memory controller caps throughput at the DDR4 2666 PC4-21300 data rate, so sustained bandwidth tops out at that ceiling before thermal throttling or voltage limits become factors.

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