# Expansion Dock for Onion Omega

**Type:** Product page · **SKU:** DEV-14439 · **Brand:** [Onion Omega](https://core-electronics.com.au/brands/onion-omega-australia)
**Page:** https://core-electronics.com.au/expansion-dock-for-onion-omega.html ([markdown](https://core-electronics.com.au/expansion-dock-for-onion-omega.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: Onion.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/Onion

## Description

The Expansion Dock is the perfect companion for the Omega, making it incredibly convenient and easy to use as well as exposing a variety of the Omega’s features. We strongly recommend getting a Dock for your Omega to get the best experience and most performance, functionality, and stability from your device.

### Convenience

You can provide power to the Omega and Dock with any Micro USB cable. The Dock includes a regulator circuit that ensures the Omega always receives the stable 3.3V it needs to operate optimally.

### Functionality

The Dock exposes several of the Omega’s features to the user:

- The Omega’s GPIOs are exposed on the Expansion Header. Use the header to plug in Onion Expansions or connect to external circuits
- Connect USB devices directly to your Omega
- Control the RGB LED on the Dock using the Omega’s GPIOs
- Press the Reset Button to reboot your Omega, hold it for 10 seconds to perform a factory restore
- Turn your Omega on and off with the Power Switch
 
### Modular

Compatible with all Omega Expansions. Extend the functionality of your Omega by connecting one of our plug and play Expansions.

### Ease of Use

Thanks to the on-board USB-to-Serial chip, you will always have access to the Omega’s serial terminal. No network connectivity required, just a solid USB connection. The serial terminal is especially handy when accessing the bootloader to reflash your Omega.

![](https://raw.githubusercontent.com/OnionIoT/Onion-Docs/master/Omega2/Documentation/Get-Started/img/unbox-5-omega-switched-on.jpg)

### Technical Details

- 1x Micro USB Port – Power and serial terminal access
- 1x USB-A Port – Connect USB devices to the Omega
- 1x On-board RGB LED
- 1x Reset Button
- 1x Power Switch
- 30-pin Expansion Header
 
### Links

- [Expansion Dock Hardware Overview](https://docs.onion.io/omega2-docs/expansion-dock.html)
- [Using the Expansion Dock](https://docs.onion.io/omega2-docs/expansion-dock.html#using-the-dock)
- [Technical Drawing](https://raw.githubusercontent.com/OnionIoT/technical-drawings/master/Mechanical/OM-D-EXP.pdf)
- [Controlling the Omega’s GPIOs](https://docs.onion.io/omega2-docs/using-gpios.html)
- [Using USB Storage with the Omega](https://docs.onion.io/omega2-docs/usb-storage.html)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/4/14439-03.jpg)