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A GPIO header extension adapter for the Raspberry Pi 400, providing a standard 2×20 pin GPIO header so you can connect HATs, pHATs, and other add-on boards. ...

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A GPIO header extension adapter for the Raspberry Pi 400, providing a standard 2×20 pin GPIO header so you can connect HATs, pHATs, and other add-on boards. Since the Pi 400's GPIO header is recessed at the back of the keyboard unit, this adapter brings the pins out to a convenient, accessible position.

Key Features

  • 2×20 Pin GPIO Header – Full 40-pin breakout compatible with standard Pi HATs
  • Designed for Pi 400 – Purpose-built to extend the recessed GPIO connector
  • HAT Compatible – Attach any Raspberry Pi HAT or pHAT
  • Secure Mounting – Screw pack included for stable attachment

Ideal For

  • Adding HATs and sensor boards to the Raspberry Pi 400
  • Breadboard prototyping with the Pi 400
  • Educational and maker projects

Package Contents

  • 1× Raspberry Pi 400 GPIO Adapter
  • 1× Screw pack

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.
pHAT
A smaller add-on board format for Raspberry Pi, similar in idea to a HAT but usually not full-sized. It matters because pHAT compatibility can affect how neatly a board stacks or fits into a Raspberry Pi project.
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