Adafruit - 914 for Raspberry Pi

Universal prototyping board for Raspberry Pi minicomputers. Comes with a 40-pin connector. Adafruit 3203

Connecting ribbon with a length of 15 cm (40 wires), terminated on both sides with 2x20 pin female connectors. The cable can be used to connect Raspberry Pi with prototyping accessories (eg T-Cobbler Plus)

A pin expander designed for Raspberry Pi boards. It is equipped with a standard 40-pin connector for connecting a minicomputer and five sets of 2x20-pin outputs for connecting expansion modules. Waveshare Stack HAT

The expansion module is designed to work with the Raspberry Pi 400. The board has a 40-pin connector placed in a vertical position and a connector for RPI 400 at an angle of 45°. Adafruit 4862

Pin header goldpin black 2x40 pins. Straight connector for through-hole assembly. 2.54mm pitch

Expansion module designed to work with a portable computer built into the Raspberry Pi 400 keyboard. There are two 40-pin connectors on the board in a vertical position. SB Components 21307

The expansion module is designed to work with Raspberry Pi 400 - a  portable computer built into the keyboard. The board has a 40-pin connector in the pin position and two Qwiic connectors. SparkFun DEV-17512

T-Cobbler adapter enabling connection of GPIO Raspberry Pi A +, B +, Pi 2, Pi 3, Pi 4 and Pi 5 lines to the breadboard (2.54 mm). Adapter assembled, included connecting tape

The expansion module is designed for Raspberry Pi minicomputers. It is equipped with connectors to which you can attach modules compatible with the Grove standard. Seeed Studio 103030275

The expansion module is designed to work with a portable computer built into the Raspberry Pi 400 keyboard. The board has two 40-pin connector in a vertical position. Waveshare PI400-GPIO-ADAPTER-B

Raspberry Pi Prototype HAT is a prototype board that fits Raspberry Pi3, Pi 2 and + computers. The set includes a self-assembly connector and assembly elements

Adapter for connecting the GPIO line of the Raspberry Pi to the breadboard (2.54 mm). The set includes a connection tape. SparkFun BOB-13717

Mini pin expander designed for Raspberry Pi boards. It is equipped with a standard 40-pin connector for connecting a minicomputer and a set of 2x20-pin outputs for connecting expansion modules. Pimoroni PIM300

GPIO expansion board for Raspberry PI B + and RPi 2 - set: cable, adapter, contact pad 400 fields

The adapter allows for prototyping using the GPIO connectors of Raspberry computers, and thanks to the IDC 40-pin tape it is possible to securely and securely connect the adapter with the RPI output

Adapter between the Raspberry Pi GPIO port and universal contact plates, RoHS