Raspberry Pi 400 is a complete personal computer, built into a compact keyboard. Portable design, easy to carry. Just simply connect to a mouse, and a monitor with the Pi 400, you will get a powerful desktop PC.Note: There is only a keyboard in the package. 

• 1.8GHz Quad-Core 64-bit Arm Cortex A72 CPU. Compared with the 1.5 GHz frequency of Raspberry Pi 4, Pi 400 has a frequency of 1.8 GHz. So Pi 400 runs more stable and smoothly, also can help increase the read and write speed of large files.
• Dual 4K HD Video Output. The 2 HDMI ports on the back of the Raspberry Pi 400 can support up to 4K high-definition dual-band display, very convenient for your work and home entertainment. Built-in 2.4GHz/5GHz Wi-Fi & Bluetooth 5.0, you can enjoy smooth network anywhere.
• Multiple Functional Interfaces. Raspberry Pi 400’s back is designed with multiple functional interfaces. Rich I/O peripherals to further expand your projects.

INSTRUCTIONS:

• If not already installed, insert the micro SD card so that it clicks into place.
• Connect the mouse to one of the USB ports.
• Connect an HDMI screen using one of the micro HDMI ports and switch it on.
• Connect the power and press the power button/F10 on the keyboard.

To Configure the Pi:

• Your Raspberry Pi will boot and display the desktop.
• The first time you start up your Raspberry Pi, the Welcome to Raspberry Pi application will pop-up, guiding you through the initial setup to get your screen and internet connection up and running.
• You’ll be asked to check for software updates, it’s good practice to always keep it up to date so go ahead and install any that come up. This might take a little while.