BIGTREETECH PI4B Adapter V1.0 for CM4 or CB1

BIGTREETECH BTT PI4B Adapter V1.0 CM4 & CB1 to Raspberry Pi 4B Form Factor for Klipper

The BTT PI4B Adapter V1.0 is a compact board-to-board adapter that allows Raspberry Pi CM4 or BIGTREETECH CB1 / CB1 eMMC core boards to function like a full Raspberry Pi 4B. It provides the familiar Pi 4B layout and interfaces, making it an affordable and space-efficient solution for running Klipper on 3D printers.

This adapter is ideal for users who want the power and software ecosystem of a Raspberry Pi 4B without the higher cost or larger footprint. Pair it with a BTT CB1 for a cost-effective Klipper host or with a CM4 for full feature support.

Key Features:

• Converts CM4 or CB1 core boards into Raspberry Pi 4B form factor (8556mm mounting holes)
• Full 40-pin GPIO header for easy connection to 3D printer motherboards
• HDMI output support (via CM4)
• DSI/CSI ports available when using Raspberry Pi CM4 (not supported with CB1)
• USB, Ethernet, and other standard Pi 4B interfaces enabled
• Board-to-board connector for secure and reliable mounting of CM4 or CB1
• Designed specifically for Klipper firmware with pre-configured images available
• Open-source hardware with GitHub resources for schematics and manuals

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