# IO Expansion HAT for Raspberry Pi 4B/3B+

**Type:** Product page · **SKU:** DFR0566 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/io-expansion-hat-for-raspberry-pi-4b-3b.html ([markdown](https://core-electronics.com.au/io-expansion-hat-for-raspberry-pi-4b-3b.html.md))

This IO Expansion HAT from DFRobot is the perfect companion for your Raspberry Pi 4B/3B+! It leads out all of the IO ports on Raspberry Pi including digital port...

## Pricing

- **Price:** $16.85 (inc GST) — $15.32 AUD, exc GST
- **Quantity discounts:** 6+ $14.55 (exc GST) · 12+ $13.94 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 250 more in 8–12 days.

## Description

**Introduction**  This IO Expansion HAT from DFRobot is the perfect companion for your [Raspberry Pi 4B/3B+](https://www.dfrobot.com/category-157.html)! It leads out all of the IO ports on [Raspberry Pi](https://www.dfrobot.com/category-153.html) including digital port, analog port, PWM, IIC, UART, SPI, and IIS. Besides that, the HAT is totally compatible with [DFRobot Gravity Series](https://www.dfrobot.com/gravity), which frees users from complicated connection work and enables them to just concentrate on their projects building.![](https://image.dfrobot.com/image//data/DFR0566/1.jpg)

[Raspberry Pi ](https://www.dfrobot.com/category-153.html)GPIO pins work with a maximum logic level of 3.3V. Besides the[ sensor ](https://www.dfrobot.com/category-36.html)and [module ](https://www.dfrobot.com/category-156.html)of 3.3V power supply, the product also supports:

- Sensor and module with 5V power supply and 3.3V level
- PWM external power supply (6~12V)
- Controlling multiple servos
 
![](https://image.dfrobot.com/image//data/DFR0566/2.jpg)

 **Dimension Diagram**

  **Specification** - Operating Voltage: 5V
- PWM Port External Power: 6-12V
- Sensor Interface External Power: 3.3V
- Dimension: 65\*56 mm/2.56\*2.20”
 
  **Documents** 17. [Product wiki](https://wiki.dfrobot.com/IO%20Expansion%20HAT%20for%20Raspberry%20Pi%20%20SKU%3A%20%20DFR0566)
  **Parts List** - IO Expansion HAT x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0566-1.jpg)