Description: brand new and high quality Features: Made of high-quality material, durable, firm and stable to use. This allows you to connect all types of funny things as input. It is an invention kit that makes your computer think that almost anything is a keyboard. The kit uses high resistance switching to detect when you have made a connection even through materials that are not conductive. The ATMega32u4 connects to your computer using the human interface device (for HID) protocol which means that it can act as a keyboard or a mouse. No need to program, no need to connect tedious lines, no need to install software, just need to connect USB to use, very simple! Specifications: Item Type: Main Control Board Kit Communication interface: USB Material: PCB Board Size: PCB Board: 94x48mm/3.7x1.8in Color: As shown Quantity: 1 Set Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Controller Board 10 x for Crocodile Clips 1 x USB Cable 10 x Jumper Cables