Methods, systems, and devices describe triaxial photoconductive switch modules that include a center conductor, an inner conductor, an outer conductor, a high voltage capacitor that is formed between the center conductor and the inner conductor, and a photoconductive switch that is formed between the center conductor and a section of the outer conductor. The disclosed triaxial photoconductive switch modules include low inductance current paths that lead to high current efficiencies. Furthermore, the disclosed triaxial photoconductive switch modules eliminate or reduce parasitic capacitance problems of existing systems.