A type-b USB cable, cable length 3m. Compatible with Arduino Uno. This is the most common A to B Male/Male type peripheral USB 2.0 cable for Arduino. It is compatible with most Arduino boards such as Arduino Mega, Romeo, Arduino Duemilanove. Often used for printers and other peripherals. While still a little bulky in shape for small embedded systems, this is a standard cable found everywhere. Use this cable with Arduino UNO and others, but not for Arduino Leonardo based boards.