The practical utility is, like its big brother EXSB1, very high. Thanks to its compact design, this board is ideal for small to medium experimental circuits. Note: The EXSB-Mini is now also available as a ready-made device. Measuring just 17 x 9 centimeters, this new experimental board from our development department features four different voltage inputs (Micro-USB, barrel jack, 2-pin terminal block, and JST-PH socket) and also includes a voltage regulator for output voltages of 5 and 3.3 volts. Protection circuits against short circuits, overloads, and reverse polarity make the board safe against user errors. Various potentiometers, buttons, terminals, and measurement points provide a peripheral setup that supports the easy construction of experimental circuits. By relocating control elements such as buttons and potentiometers from the breadboard to an adjacent board, more space is available on the breadboard for the actual electronics. The used breadboard has 470 contacts and is of high quality. The underside of the board is protected by a housing base that also ensures good stability. With four different voltage inputs, such as Micro-USB input, barrel jack, 2-pin terminal block, and JST-PH socket, as well as a power switch and voltage regulator for output voltages of 5 V and 3.3 V. Integrated protection circuits against short circuits, overload, and reverse polarity - safe against user errors. Peripheral setup for the easy construction of experimental circuits - by relocating the main control elements such as buttons and potentiometers and the power supply, more space is available for the actual circuit. Includes a high-quality breadboard with 470 contacts. Four measurement points for connecting a multimeter or oscilloscope (2 ground connections). Three thumbwheel potentiometers with values of 10 k, 100 k, and 1 M, which are color-coded.