Nabu Casa
Home Assistant Green
- Matter
Verified September 2026
The official plug-and-play Home Assistant hub and the easiest way for UK beginners to start — no SD cards, no flashing, no OS choices, just plug into your router and go. At £159 it's pricier than building your own on a Raspberry Pi 5 (roughly £100 for board, case and SSD), and a used mini PC with an N100 chip will out-muscle it for the same money if you plan to run Frigate or heavy add-ons. What you're paying for is zero setup friction and one soldered eMMC drive nothing can go wrong with — ideal for true beginners who just want a hub that works, less ideal for tinkerers who'll outgrow the fixed 32GB storage and lack of built-in radios within a year.
In Home Assistant
| Control | Type | What it does |
|---|---|---|
| CPU usage | Sensor (%) | Live CPU utilisation on the RK3566 SoC — worth watching before adding Frigate or other compute-heavy add-ons. |
| Memory usage | Sensor (%) | RAM usage against the fixed 4GB — helps spot add-ons that are memory-starved rather than CPU-bound. |
| Disk usage | Sensor (%) | Used capacity on the 32GB eMMC, which can't be swapped or expanded like Yellow's. |
| Update available | Binary sensor | Flags a pending Core, Supervisor or HAOS update — Green updates the whole host, not just the app layer. |
| Last backup | Sensor (timestamp) | Time of the last successful automatic backup — the disaster-recovery path if the eMMC degrades. |
Green runs on a Rockchip RK3566 with all storage on a single soldered 32GB eMMC — the most-repeated complaint on the HA community forum is eMMC wear from the recorder database and history writes, with some owners reporting 10-20% "lifetime used" within weeks; moving recorder/history and backups to an attached USB drive from day one avoids this. Camera-heavy setups running Frigate with object detection are underpowered here versus an Intel N100 box, so treat Green as a controller for Zigbee/Z-Wave/cloud integrations rather than a local NVR host. Migrating from an existing HA install is a straightforward OS backup/restore, though a botched restore can leave a stale HAOS partition signature on the eMMC that blocks re-restoring until it's wiped clean.
Specs
- cpu
- Rockchip RK3566, 1.8 GHz quad-core Arm Cortex-A55
- poe
- Not supported
- ram
- 4GB LPDDR4X
- power
- 12V/1A DC barrel, UK/EU/US adapters included — approx. 1.7W idle, 3W under load
- radio
- None built-in — Matter over LAN only; add USB dongles for Zigbee/Thread/Z-Wave
- storage
- 32GB eMMC (soldered, non-expandable; microSD slot is recovery-only)
- dimensions
- 112 x 112 x 32mm, 340g
- connectivity
- Gigabit Ethernet, 2x USB 2.0 Type-A, HDMI (diagnostic only)