Raspberry Pi 4B GPIO Terminal Block HAT

The Raspberry Pi GPIO Terminal Block HAT provides secure, stable screw-terminal connections and real-time status monitoring for Raspberry Pi projects. It breaks out every GPIO pin alongside dedicated power and ground rails, making it ideal for makers, educators, and industrial setups requiring permanent wiring. Compatible with Raspberry Pi 4B, 3B, and Zero models.

Secure screw terminal breakout

All 28 GPIO pins are routed to robust 127S-3.81mm screw terminals for stable, long-term wiring. The board includes breakout terminals for four 3.3V, four 5V, and twelve GND connections to simplify power distribution.

Onboard LED status indicators

Featuring 32 blue LED indicators beneath the terminal blocks, the HAT provides real-time visual feedback of port logic levels during operation. Certain pins, including CE0, CE1, I2C, UART, IO21, IO22, and power rails, light up by default to assist testing and debugging.

Colour-coded silkscreen labelling

Durable, high-quality silkscreen printing using six distinct colours clearly labels every terminal port. This allows for fast pin identification during assembly, circuit testing, and post-maintenance work.

Dimensions and included hardware

The board measures 65 by 56.5 mm and mounts securely over compatible Raspberry Pi boards. Each kit includes four copper standoffs and mounting screws for rigid installation.

Downloads & documentation

• Product wiki (DFRobot)