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Raspberry Pi 400 GPIO Header Adapter, Header Expansion
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A GPIO header adapter designed specifically for the Raspberry Pi 400. It connects to the Pi 400's rear GPIO header and provides a standard 40-pin breakout, m...
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A GPIO header adapter designed specifically for the Raspberry Pi 400. It connects to the Pi 400's rear GPIO header and provides a standard 40-pin breakout, making it easy to attach HATs, breadboards, and other expansion boards.
The header features colour-coded pins for quick identification of power, ground, GPIO, I²C, SPI, and UART connections.
Key Features
- Designed for Pi 400 – Connects to the rear-mounted GPIO header
- 40-Pin Breakout – Standard Raspberry Pi GPIO pinout
- Colour-Coded Header – Easy identification of pin functions
- HAT Compatible – Attach standard Raspberry Pi HATs and add-on boards
Ideal For
- Adding HATs and expansion boards to the Raspberry Pi 400
- Breadboard prototyping with the Pi 400
- Accessing GPIO, I²C, SPI, and UART from the Pi 400
Package Contents
- 1× Raspberry Pi 400 GPIO Header Adapter
Note: Raspberry Pi 400 and expansion boards shown in product images are not included.
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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