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AJMRTC PI400-GPIO-ADAPTER-B GPIO Header Expansion Board for Raspberry Pi 400, Dual 2x40PIN GPIO Header Breakout Adapter, Extend Pi400 Pins for Electronic DIY Projects

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- PI400-GPIO-ADAPTER-B specially designed GPIO expansion adapter for Raspberry Pi 400
- Dual 2×40PIN GPIO header breakout design, duplicates Pi400 original GPIO pins
- Precise pin mapping maintains all GPIO, I2C, SPI, UART and PWM signal functions
- Simple plug-and-play installation, no soldering required for fast hardware expansion
- Compact form factor, great for sensor connection, prototyping and Raspberry Pi DIY builds

Overview

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AJMRTC PI400-GPIO-ADAPTER-B is a dedicated GPIO header expansion adapter built for Raspberry Pi 400. It features dual 2x40PIN headers to duplicate the original GPIO signals of Pi400, allowing you to connect multiple peripheral modules at the same time. All pins are accurately routed to preserve GPIO, I2C, SPI, UART and PWM functions. Plug-and-play design enables quick setup without soldering. This adapter simplifies peripheral wiring and prototyping work. It is ideal for connecting sensors, motors and other electronic modules in Raspberry Pi 400 embedded and DIY projects.

Specifications

Brand: AJMRTC
Model: PI400-GPIO-ADAPTER-B
Compatible Device: Raspberry Pi 400
Header: Dual 2×40PIN GPIO Header
Function: GPIO Signal Duplication & Expansion
Installation: Plug and Play
Application: Raspberry Pi Prototyping, Electronic DIY Projects

Additional Information
First Listed on Newegg	September 17, 2026

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Return for refund within: 30 days
Return for replacement within: 30 days
This item is covered by ThermalNest Return Policy

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Item#: 9SIC8JMM6J5537