Protozero is a breadboard-style prototype board for the new zero It is designed to facilitate you to move the messy breadboard to the pcb. Just add your components to the prototype area, connect gpio, power supply and gnd together as required. The function completely breaks through pizero's 40-pin gpio , ready to be connected to the 154-hole prototype area of your project-set in 3+, making it easier to connect your components to the pilabled gpio number and printing the on the wooden board. High-quality enig (Electroless nickel plating and immersion gold) The platform GPIO header includes the only assembly involved in the soldering GPI0 header. for Zero W extends the Pi Zero series, Colour:black Material:PC+ metal Size: 65 x 30MM Package Contents: 1 * Expansion board 1 * Row mother Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.