Description : The benchtop power board kit was created to provide quick access to the typical voltages needed when developing physical computing projects ( embedded systems ). After assembling the kit you will have access to four different voltages ( 3 . 3V , 5V , 12V and - 12V ) each with their own replaceable 5A fuse . Each has a corresponding ground connection ; all of the s are brought out to a binding post . The benchtop power board should be powered by computer power supply with an ATX connector . With power light and power switch . 24 pins ATX computer power sockets , compatible pins plug . 4 pcs copper cylinder holders design . Size : 48x128x30mm / 1 . 89x5 . 04x1 .. Package Includes : 5 x Benchtop Power Board Note : Color might be slightly different due to the color calibration of each individual monitor . Please allow slightly measuring deviation due to manual measurement .