🖥️ Raspberry Pi 3 Model B — 2GB RAM | Home Assistant & Smart Home Server
The trusted single-board computer for Home Assistant, Zigbee2MQTT, Node-RED, Pi-hole, and countless smart home and DIY projects. The Raspberry Pi 3 Model B features a 1.2 GHz 64-bit quad-core ARM Cortex-A53, 2GB LPDDR2 RAM, built-in WiFi and Bluetooth, Ethernet, 4× USB 2.0, HDMI, and the 40-pin GPIO header. Pair with a ZBDongle-E or Dongle-LMG21 to run a full local Zigbee smart home — no cloud required.
Choose your Raspberry Pi:
⚡ Key Features
- 1.2 GHz Quad-Core ARM Cortex-A53 — 64-bit Broadcom BCM2837 SoC; enough for Home Assistant, Zigbee2MQTT, and lightweight automation servers
- 2GB LPDDR2 RAM — runs Home Assistant OS, Raspberry Pi OS, or other Linux distributions
- Built-In WiFi & Bluetooth — 802.11n wireless and Bluetooth 4.1/BLE; no adapters needed
- Ethernet (100 Mbps) — wired network connection for reliable server use
- 4× USB 2.0 Ports — connect Zigbee dongles, storage, keyboard, and peripherals
- HDMI Output — connect a monitor for setup or use headless via SSH
- 40-Pin GPIO Header — interface with sensors, relays, displays, and custom electronics
- MicroSD Card Slot — boot from MicroSD (card not included); use 32GB+ for Home Assistant
- Micro USB Power — 5V / 2.5A power supply recommended (not included)
🏠 Perfect For
Home Assistant Server
Install Home Assistant OS on a MicroSD card and run a full local smart home server. Add a ZBDongle-E for Zigbee device control. Manage all your SONOFF, Zigbee, WiFi, and Matter devices from one dashboard.
Zigbee2MQTT / ZHA
Plug in a SONOFF ZBDongle-E or Dongle-LMG21. Run Zigbee2MQTT or ZHA for full local Zigbee control — no cloud, no eWeLink dependency, complete privacy.
Pi-hole Ad Blocker
Block ads and trackers across your entire home network. The Pi 3B handles DNS-level ad blocking for dozens of devices with ease.
DIY & Maker Projects
GPIO header connects to sensors, relays, cameras, displays, and more. Perfect for custom automation, weather stations, security systems, and learning to code.
📋 Technical Specifications
| Product | Raspberry Pi 3 Model B |
| SoC | Broadcom BCM2837 (64-bit) |
| CPU | 1.2 GHz Quad-Core ARM Cortex-A53 |
| RAM | 2GB LPDDR2 |
| WiFi | 802.11n (2.4 GHz) |
| Bluetooth | Bluetooth 4.1 / BLE |
| Ethernet | 100 Mbps |
| USB | 4× USB 2.0 |
| Video | Full-size HDMI |
| GPIO | 40-pin header |
| Storage | MicroSD card slot (card not included) |
| Power | Micro USB · 5V / 2.5A recommended |
| Dimensions | 85.6 × 56.5 × 17 mm |
| In the Box | 1× Raspberry Pi 3 Model B board |
❓ Frequently Asked Questions
Can I run Home Assistant on this?
What do I need besides the board?
Is the Pi 3B still fast enough?
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Raspberry Pi 3B — the affordable brain for Home Assistant & local automation.
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