The Bio-Rad Micropulser system is used for the simple electroporation of yeast, bacteria, and other microorganisms. The complete system is comprised of a pulse generator with shocking chamber, and uses cuvettes with integrated electrodes. The integrated capacitor is charged from 200 to 3000 V and discharged through samples suspended in high resistance media. Pulse times are adjustable from 1.0 to 4.0 ms. Uses arc quenching system to prevent sample damage.