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Synology DS425+

Synology

Synology DS425+

  • Native integration
  • Local control
  • Ethernet

Prices verified November 2026

Our verdict

The four-bay step up from the DS225+, with the same Celeron J4125 class of CPU (per the listing). Choose it if you want RAID with a spare bay or more storage, but it costs a lot for a platform built on older silicon, and a two-bay unit is plenty for most Home Assistant homes.

What can Home Assistant control on the Synology DS425+?

Home Assistant core has a first-party Synology DSM integration (local polling): drive health and temperature, CPU/memory/volume sensors, Surveillance Station cameras and a reboot/shutdown button, and it can store HA backups on the NAS. The docs cover DSM, not individual models, so this one is assumed to work rather than verified.

Specs

cpuIntel Celeron J4125, 2GB DDR4 (per listing)
bays4-bay desktop NAS (diskless)

How does the Synology DS425+ compare?

ProductFromProtocolLocal controlIntegration
Synology DS425+ (this product)£575.16EthernetYesNative
Amazon eero 6+£139.99Wi-Fi, EthernetCloudHACS
Amazon eero Max 7£599.99Wi-Fi, EthernetCloudHACS
Amazon eero Pro 6E£179.99Wi-Fi, EthernetCloudHACS

Frequently asked questions

Does the Synology DS425+ work with Home Assistant locally?
Yes. The Synology DS425+ is controlled locally in Home Assistant through a built-in Home Assistant core integration (synology_dsm), so it keeps working if your internet connection or the Synology cloud goes down. Control and state updates stay on your own network.
How much does the Synology DS425+ cost in the UK?
The lowest price we have listed for the Synology DS425+ is £575.16 at Amazon UK. Prices were last checked in November 2026 and change often, so confirm on the retailer's page before buying.
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Synology

Synology DS425+

£575.16 at Amazon UK

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