WSAL19033 – Raspberry-Pi-400/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The Raspberry Pi 400 is an integrated mini-PC housed in a keyboard enclosure. It is based on a purpose-built board that is hardware and software compatible with the Raspberry Pi 4.

Related products at JW Tech

• WSAL19033 – Raspberry Pi 400, a Powerful, Easy-To-Use Computer Built Into a Keyboard
• WSAL19191 – Raspberry Pi 400, a Powerful, Easy-To-Use Computer Built Into a Keyboard

Technical overview

• CPU: ARM Cortex-A72 at 1.8 GHz (for comparison: the Pi 4 runs at 1.5 GHz)
• Memory: 4 GB LPDDR4-3200
• Connectivity: dual-band Wi-Fi (2.4 GHz and 5.0 GHz, IEEE 802.11b/g/n/ac), Bluetooth 5.0/BLE, Gigabit Ethernet
• USB ports: 2× USB 3.0 and 1× USB 2.0
• Video/audio: 2× micro HDMI ports supporting up to 4Kp60
• Dimensions: 286 mm × 122 mm × 23 mm (maximum)
• Interfaces: Type-C power connector (requires 5 V/3 A adapter), 40-pin GPIO for accessories, micro SD card slot for OS and data storage
• Availability: UK and US versions; both are hardware- and software-compatible

Commands and examples – verify before use: 

xrandr
xinput
xinput map-to-output <touch ID> <HDMI-ID>
sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

Notes and version constraints

• Exact xinput/xrandr IDs depend on system configuration; the example uses ID 7 and HDMI-1.
• To make touchscreen settings persistent, add the command to the autostart file and reboot the device.
• The required 5 V/3 A power adapter is not included; verify availability before use.
• Clarify version-specific differences between the UK and US models before deployment.

Source and revision record

• Raspberry-Pi-400 - Waveshare Wiki
• Source revision: 67048
• Captured: 2026-09-01T03:52:10+00:00
• SHA-256: 063a734d6c95edcef442341a23311fb5095557436e9f20f298110f7d39eeaec5