Universal double-sided printed circuit board with metallization of holes, compatible with Arduino MEGA / MEGA 2560 set. It allows you to build your own so-called Protoshield or Shield, i.e. extension covers for Arduino, based on your own idea. The dimensions of the printed circuit board and I / O pins fit perfectly, among others, to the Arduino mega modules. On the board, additional pins for the so-called connectors. terminal block ARK for screwing on the wires. Technical data: external dimensions: 120mm x 78mm plate thickness: 1.6 mm Material: FR-4 double-sided with hole metallization raster - hole spacing: 2.54mm / 100mils | hole diameter: 0.8mm terminal block raster: 3.5mm / 138mils ", hole diameter in the board: 1.2mm terminal block: 84 pins in total (3pin x24pcs, 2pin x6pcs) terminal block: for screwing on a cable with a diameter of up to 5mm socket for GOLD-PIN single 10pin x1 piece socket for GOLD-PIN single 8pin x 5 pcs socket for GOLD-PIN double 18pin x1 piece professional double-sided solder-mask cut to size (milled) professional performance tinned contact pads kit for self-assembly - soldering https://elecena.pl/product/22604899/ark-terminal-adapter-shield-for-arduino-mega2560 2023-02-22 https://elecena.pl/product/22604899/ark-terminal-adapter-shield-for-arduino-mega2560 2025-03-16 https://elecena.pl/product/22604899/ark-terminal-adapter-shield-for-arduino-mega2560 2025-10-25 https://elecena.pl/product/22604899/ark-terminal-adapter-shield-for-arduino-mega2560 2025-10-29