RPI - Raspberry Pi Proto Board

Pin expander for Raspberry Pi boards. It is equipped with a standard 40-pin connector for connecting a minicomputer and three sets of 2x20-pin outputs for connecting extension modules. SB Components 14095

Adafruit 942 - Adafruit Pi Dish for Raspberry Pi - Includes Breadboard

Adafruit 1148 - Adafruit Half-size Perma-Proto Raspberry Pi Breadboard PCB Kit, RoHS

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

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

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

Adafruit 1135 - Adafruit Perma-Proto Raspberry Pi Breadboard PCB Kit

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

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)

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

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

The IO pin expansion module is designed for minicomputers Raspberry Pi 3, Raspberry Pi 4 and Raspberry Pi 400. It contains markings of all inputs and outputs of the minicomputer. DFRobot DFR0828

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 4863

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

Adapter designed for Raspberry Pi minicomputers. It facilitates access to all pins, which are led out on the connector with a raster of 2.54 mm, which allows the use of a breadboard. SB Components 14927

The KAmod RPI5-Proto universal board is an accessory designed for the Raspberry Pi 5, offering a grid of metalized holes in a 2.54 mm pitch and GPIO pins and I2C, SPI and UART interfaces, which makes it easy to create simple electronic circuits