A light gray rectangular USB hub with three ports on one side, photographed on a seamless light gray background. Home Assistant Connect AUX-2.
A white AUX-2 audio gear and home assistant bridge device shown next to its brown cardboard packaging box on a light gray background.
A modern white LED desk lamp with a slim cylindrical neck and square base, shown alongside its white power adapter on a light blue surface against a matching blue background.
A small white rectangular audio adapter or hub with USB-A and audio jack ports, placed on a light wood tabletop in a styled room setting with audio equipment and a record sleeve nearby.
A white rectangular electronic device with multiple ports on its side, including USB, audio jacks, and a HDMI port, set against a solid blue background.
A white rectangular electronic device with ports, including a USB-C port and an Ethernet port, shown from the back on a light blue surface against a matching blue background.
Close-up of a dark electronic circuit board labeled 'Home Assistant Connect AUX-2' with visible connectors, chips, and small printed text.
A close-up of a black electronic circuit board labeled 'Home Assistant Connect AUX-2', showing various electronic components, connectors, and a silver USB-C port against a light blue background.
A light gray rectangular USB hub with three ports on one side, photographed on a seamless light gray background. Home Assistant Connect AUX-2.
A white AUX-2 audio gear and home assistant bridge device shown next to its brown cardboard packaging box on a light gray background.
A modern white LED desk lamp with a slim cylindrical neck and square base, shown alongside its white power adapter on a light blue surface against a matching blue background.
A small white rectangular audio adapter or hub with USB-A and audio jack ports, placed on a light wood tabletop in a styled room setting with audio equipment and a record sleeve nearby.
A white rectangular electronic device with multiple ports on its side, including USB, audio jacks, and a HDMI port, set against a solid blue background.
A white rectangular electronic device with ports, including a USB-C port and an Ethernet port, shown from the back on a light blue surface against a matching blue background.
Close-up of a dark electronic circuit board labeled 'Home Assistant Connect AUX-2' with visible connectors, chips, and small printed text.
A close-up of a black electronic circuit board labeled 'Home Assistant Connect AUX-2', showing various electronic components, connectors, and a silver USB-C port against a light blue background.

Home Assistant Connect AUX-2

Price
Regular price
£60.00 GBP
Sale price
£60.00 GBP
Regular price
Shipping calculated at checkout.
Available In Stock
30 Days Return Policy

Home Assistant Connect AUX-2

The smart home multi-tool

Integrate your existing gear into your smart home with Home Assistant Connect AUX-2, the ultimate smart home multi-tool. Stream CD-quality audio directly to your Hi-Fi or AV receiver, perfectly synced with your existing smart speakers. Manage solar setups, TVs, UPSs, and more via its USB and two serial ports. Optimize your Z-Wave network by placing it in the ideal spot in your home, and expand your Bluetooth reach with a dedicated antenna. Power over Ethernet (PoE) enables a clean, single-cable setup, with Wi-Fi and USB-C options ready whenever you need them. Best of all, every purchase funds the development of Home Assistant.


Home Assistant Connect AUX-2
Works with Home Assistant Bluetooth badge - light Bluetooth badge - dark Ethernet badge - light Ethernet badge - dark WiFi Z-Wave badge

Optimise Your Z-Wave Coverage with PoE

Position your Z-Wave network in the ideal location for stronger, more reliable coverage with Home Assistant Connect AUX-2. Simply connect your ZWA-2 adapter (sold separately) and enjoy flexible placement with power and connectivity through a single Power over Ethernet (PoE) cable.

Premium Audio & Seamless Smart Home Control

Bring your existing Hi-Fi or AV receiver into your smart home with crystal-clear, CD-quality audio streaming via analogue or optical output. Enjoy perfectly synchronised multi-room audio with Music Assistant, plus convenient power and volume control through a serial connection.

Flexible Power & Connectivity Options

Enjoy the freedom to power and connect your Home Assistant Connect AUX-2 your way. Use Power over Ethernet (PoE) for a clean, single-cable setup, or choose USB-C power with Ethernet or Wi-Fi connectivity for flexible installation anywhere in your home.

Expand Your Smart Home with Bluetooth

Extend your Bluetooth smart home coverage with Home Assistant Connect AUX-2's built-in Bluetooth proxy and dedicated antenna. Connect and control compatible Bluetooth devices directly through Home Assistant, with reliable wired connectivity and no separate Bluetooth hub required.

*Bluetooth audio is not supported.

Description

Integrate your existing gear into your smart home with Home Assistant Connect AUX-2, the ultimate smart home multi-tool. Stream CD-quality audio directly to your Hi-Fi or AV receiver, perfectly synced with your existing smart speakers. Manage solar setups, TVs, UPSs, and more via its USB and two serial ports. Optimize your Z-Wave network by placing it in the ideal spot in your home, and expand your Bluetooth reach with a dedicated antenna. Power over Ethernet (PoE) enables a clean, single-cable setup, with Wi-Fi and USB-C options ready whenever you need them. Best of all, every purchase funds the development of Home Assistant.

Home Assistant Connect AUX-2 is the smart home multi-tool. It brings old, but still great-sounding audio gear into Home Assistant and syncs them with smart speakers. Serial gives you advanced device control, USB helps position your Z-Wave network in a better spot, and a built-in Bluetooth proxy expands coverage. Best of all, it has Power over Ethernet (PoE).

Key Features:

  • Supported features: Synchronized whole-home audio with Music Assistant (Sendspin), Home Assistant media playback, RS-232 serial control, RS-485 via USB adapter (sold separately), Z-Wave via Connect ZWA-2 (sold separately), Bluetooth LE proxy.
  • Power and network: Power over Ethernet (802.3af or better) or USB-C, and Ethernet or Wi-Fi.
  • Chips inside: ESP32-S3 (SoC), TI PCM5122 (audio DAC), and W5500 (Ethernet controller).

Summary:

  • 🧰 THE SMART HOME MULTI-TOOL – audio, serial, Z-Wave, and Bluetooth, all at the same time. Just plug it in, and Home Assistant’s wizard helps you set it up.
  • ⚡POWERFUL OPTIONS – power and data over a single Power over Ethernet (PoE) cable, or use USB-C power with Wi-Fi/Ethernet.
  • 🎶 WHOLE-HOME SYNCED AUDIO – CD-quality analog or optical audio for your Hi-Fi or receiver, in sync with your smart speakers, and ready for Music Assistant.
  • 🎛️ ADVANCED CONTROL – 2× RS-232 and an RS-485* let you control your TV, receiver, or projector even in standby, plus other serial gear. *RS-485 adapter sold separately.
  • 📡 CONNECT ANYWHERE – move your Z-Wave network (Connect ZWA-2) to the best spot in your home. Adapter sold separately.
  • 📶 ROCK-SOLID BLUETOOTH – a dedicated antenna brings Bluetooth smart home devices* into Home Assistant over a stable wired connection (*Bluetooth audio is not supported).
  • 🛠️ BUILT TO BE TINKERED WITH – Built on ESPHome and easy to take apart. Ready to go out of the box, or customize it to your needs.
  • ✅ RELIABLE TO THE CORE – Built by Nabu Casa, providing dedicated support and years of software updates.
  • 🏠 FUNDING HOME ASSISTANT – Every purchase funds the development of Home Assistant.

Tech Specs

SoC
ESP32-S3R8 8 MB PSRAM, 8 MB flash
Audio DAC
TI PCM5122 112 dB SNR
Ethernet Controller
W5500
Close-up of a dark electronic circuit board labeled 'Home Assistant Connect AUX-2' with visible connectors, chips, and small printed text.
Wi-Fi
2.4 GHz, 802.11b/g/n
Bluetooth
Bluetooth 5 LE Proxy: up to 3 active connections
Ethernet
Power over Ethernet (802.3af or better) Ethernet with USB-C power
Power
USB-C, 5 V DC, 2A or Power over Ethernet (802.3af or better)
Power draw
Under 1w
Model No.
NC-AUX-9758
Conformity
CE, FCC, RCM
Dimensions
106 x 63 x 25 mm, 104 g In box: 110 x 72 x 28 mm, 136 g
Enclosure
Polycarbonate plastic - white and semi-transparent
Output
3.5 mm analog or optical (S/PDIF), Output only
Analog Audio
16-bit / 48 kHz stereo
Digital audio
16-bit / 48 kHz stereo PCM, Lossless
Codecs
FLAC, MP3, WAV
Whole-home audio
Synchronized via Music Assistant (Sendspin)
Home Assistant Connect AUX-2
Warranty and Safety Information leaflet
Home Assistant sticker

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