With this prototyping board for Raspberry Pi, breadboard structures can be permanently transferred to a printed circuit board. Technical data • 40-pin GPIO support • Strip for tapping GPIO ports (labelled with assignment) • Strips for tapping for GND, 5 V, 3.3 V • 2.54 mm spacing • Socket for 8-pin IC • HAT-compatible size • Dimensions: 66 x 57 mm Included in delivery • Prototyping board • 2x20-pin female header • Screws / mounting set https://elecena.pl/product/18559355/raspberry-pi-shield-prototyping-hat 2021-05-23 https://elecena.pl/product/18559355/raspberry-pi-shield-prototyping-hat 2021-11-11