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Green Synology DDR4 ECC UDIMM module with gold contacts

Synology Inc.

Synology D4EC-2666-8G 8GB DDR4 ECC UDIMM NAS

SKU CH-AXW0-577V7 MPN D4EC-2666-8G

8 GB DDR4 ECC UDIMM memory module running at 2666 MHz for compatible Synology RackStation NAS servers

  • TypeAccessory
  • FeaturesApplied Models: RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs,
  • Weight0.05

Option D4EC-2666-8G

  • Faster application loads with 100% speed increase at DDR4-2666
  • Larger modules from 300% density boost for demanding workloads
  • 20% less power used at 1.20 V reduces cooling needs
  • ECC on 288-pin DIMM protects data integrity in NAS
  • Validated for RS4017xs+ RS3618xs RS3617xs+ RS3617RPxs RS1619xs+

Synology DDR4 ECC UDIMM for RackStation NAS

This 8 GB DDR4-2666 ECC UDIMM is built for Synology RackStation models RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs and RS1619xs+. It adds error-correcting memory to NAS servers that require data integrity for continuous operation. The module runs at 1.20 V and uses a 288-pin DIMM form factor. Compatibility is limited to the listed RackStation series.

Installation fits 288-pin DDR4 slots on supported

The unbuffered DIMM installs directly into compatible memory slots without registration circuitry. ECC capability protects stored data against single-bit errors during read and write cycles. The 1.20 V operating voltage reduces power draw compared to earlier DDR generations. This module frees the system from relying on non-ECC memory for critical workloads.

Sustained operation benefits from ECC fault

Error checking corrects single-bit errors in real time, preventing silent data corruption during long file transfers or database tasks. The 2666 MHz data rate maintains consistent throughput under continuous load. Lower power consumption reduces thermal output inside the chassis during extended use. The design targets enterprise reliability for always-on NAS deployments.

Punti di forza

  • Faster application loads with 100% speed increase at DDR4-2666
  • Larger modules from 300% density boost for demanding workloads
  • 20% less power used at 1.20 V reduces cooling needs
  • ECC on 288-pin DIMM protects data integrity in NAS
  • Validated for RS4017xs+ RS3618xs RS3617xs+ RS3617RPxs RS1619xs+

Caratteristiche tecniche

BrandSynology
ModelD4EC-2666-8G
TypeAccessory
FeaturesApplied Models: RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs, RS1619xs+
Weight0.05
Peso di spedizione0.06 kg
Dimensioni del pacco183 × 93 × 14 mm

Altre versioni di questo modello

altri 5 nella stessa gamma

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Domande su questo articolo

How much power does the 2666 MHz DDR4 module draw under continuous load?

The module operates at 1.20 V, which is a 20 % decrease in power consumption compared with earlier DDR4 standards.

What happens to system stability when the ECC UDIMM runs all day?

ECC error checking provides complete integrity and fault tolerance, delivering greater reliability, availability and serviceability for enterprise NAS workloads.

Which Synology RackStation models must I already own to install this 288-pin DIMM?

Compatible systems are the RS4017xs+, RS3618xs, RS3617xs+, RS3617RPxs and RS1619xs+.

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